diff --git a/lib/oxrdf/src/blank_node.rs b/lib/oxrdf/src/blank_node.rs
index e813dd24..3c06a548 100644
--- a/lib/oxrdf/src/blank_node.rs
+++ b/lib/oxrdf/src/blank_node.rs
@@ -19,7 +19,6 @@ use std::str;
 ///     "_:a122",
 ///     BlankNode::new("a122")?.to_string()
 /// );
-/// # Result::<_,oxrdf::BlankNodeIdParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct BlankNode(BlankNodeContent);
@@ -137,7 +136,6 @@ impl Default for BlankNode {
 ///     "_:a122",
 ///     BlankNodeRef::new("a122")?.to_string()
 /// );
-/// # Result::<_,oxrdf::BlankNodeIdParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Copy, Hash)]
 pub struct BlankNodeRef<'a>(BlankNodeRefContent<'a>);
@@ -194,7 +192,6 @@ impl<'a> BlankNodeRef<'a> {
     ///
     /// assert_eq!(BlankNode::new_from_unique_id(128).as_ref().unique_id(), Some(128));
     /// assert_eq!(BlankNode::new("foo")?.as_ref().unique_id(), None);
-    /// # Result::<_,oxrdf::BlankNodeIdParseError>::Ok(())
     /// ```
     #[inline]
     pub const fn unique_id(&self) -> Option<u128> {
diff --git a/lib/oxrdf/src/dataset.rs b/lib/oxrdf/src/dataset.rs
index f240a33a..0933681a 100644
--- a/lib/oxrdf/src/dataset.rs
+++ b/lib/oxrdf/src/dataset.rs
@@ -61,7 +61,6 @@ use std::hash::{Hash, Hasher};
 /// // direct access to a dataset graph
 /// let results: Vec<_> = dataset.graph(ex).iter().collect();
 /// assert_eq!(vec![TripleRef::new(ex, ex, ex)], results);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Debug, Default, Clone)]
 pub struct Dataset {
@@ -121,7 +120,6 @@ impl Dataset {
     ///
     /// let results: Vec<_> = dataset.graph(ex).iter().collect();
     /// assert_eq!(vec![TripleRef::new(ex, ex, ex)], results);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn graph<'a, 'b>(&'a self, graph_name: impl Into<GraphNameRef<'b>>) -> GraphView<'a> {
         let graph_name = self
@@ -152,7 +150,6 @@ impl Dataset {
     /// // We have also changes the dataset itself
     /// let results: Vec<_> = dataset.iter().collect();
     /// assert_eq!(vec![QuadRef::new(ex, ex, ex, ex)], results);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn graph_mut<'a, 'b>(
         &'a mut self,
@@ -529,7 +526,6 @@ impl Dataset {
     /// graph1.canonicalize();
     /// graph2.canonicalize();
     /// assert_eq!(graph1, graph2);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     ///
     /// Warning 1: Blank node ids depends on the current shape of the graph. Adding a new quad might change the ids of a lot of blank nodes.
@@ -987,7 +983,6 @@ impl fmt::Display for Dataset {
 ///
 /// let results: Vec<_> = dataset.graph(ex).iter().collect();
 /// assert_eq!(vec![TripleRef::new(ex, ex, ex)], results);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Clone, Debug)]
 pub struct GraphView<'a> {
@@ -1330,7 +1325,6 @@ impl<'a> fmt::Display for GraphView<'a> {
 /// // We have also changes the dataset itself
 /// let results: Vec<_> = dataset.iter().collect();
 /// assert_eq!(vec![QuadRef::new(ex, ex, ex, ex)], results);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Debug)]
 pub struct GraphViewMut<'a> {
diff --git a/lib/oxrdf/src/graph.rs b/lib/oxrdf/src/graph.rs
index 980e3ebf..63d79080 100644
--- a/lib/oxrdf/src/graph.rs
+++ b/lib/oxrdf/src/graph.rs
@@ -47,7 +47,6 @@ use std::fmt;
 /// // simple filter
 /// let results: Vec<_> = graph.triples_for_subject(ex).collect();
 /// assert_eq!(vec![triple], results);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Debug, Default, Clone)]
 pub struct Graph {
@@ -203,7 +202,6 @@ impl Graph {
     /// graph1.canonicalize();
     /// graph2.canonicalize();
     /// assert_eq!(graph1, graph2);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     ///
     /// Warning 1: Blank node ids depends on the current shape of the graph. Adding a new triple might change the ids of a lot of blank nodes.
diff --git a/lib/oxrdf/src/literal.rs b/lib/oxrdf/src/literal.rs
index 976b863d..9fbae545 100644
--- a/lib/oxrdf/src/literal.rs
+++ b/lib/oxrdf/src/literal.rs
@@ -32,7 +32,6 @@ use std::option::Option;
 ///     "\"foo\"@en",
 ///     Literal::new_language_tagged_literal("foo", "en")?.to_string()
 /// );
-/// # Result::<(), LanguageTagParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Literal(LiteralContent);
diff --git a/lib/oxrdf/src/named_node.rs b/lib/oxrdf/src/named_node.rs
index 9b545bcc..8c56ed98 100644
--- a/lib/oxrdf/src/named_node.rs
+++ b/lib/oxrdf/src/named_node.rs
@@ -12,7 +12,6 @@ use std::fmt;
 ///     "<http://example.com/foo>",
 ///     NamedNode::new("http://example.com/foo")?.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Clone, Hash)]
 pub struct NamedNode {
@@ -101,7 +100,6 @@ impl PartialEq<NamedNode> for &str {
 ///     "<http://example.com/foo>",
 ///     NamedNodeRef::new("http://example.com/foo")?.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Clone, Copy, Hash)]
 pub struct NamedNodeRef<'a> {
diff --git a/lib/oxrdf/src/triple.rs b/lib/oxrdf/src/triple.rs
index 850b1375..823347a5 100644
--- a/lib/oxrdf/src/triple.rs
+++ b/lib/oxrdf/src/triple.rs
@@ -708,7 +708,6 @@ impl<'a> From<TermRef<'a>> for Term {
 ///         object: NamedNode::new("http://example.com/o")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Triple {
@@ -779,7 +778,6 @@ impl fmt::Display for Triple {
 ///         object: NamedNodeRef::new("http://example.com/o")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 
 #[derive(Eq, PartialEq, Debug, Clone, Copy, Hash)]
@@ -1060,7 +1058,6 @@ impl<'a> From<GraphNameRef<'a>> for GraphName {
 ///         graph_name: NamedNode::new("http://example.com/g")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Quad {
@@ -1138,7 +1135,6 @@ impl From<Quad> for Triple {
 ///         graph_name: NamedNodeRef::new("http://example.com/g")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Copy, Hash)]
 pub struct QuadRef<'a> {
diff --git a/lib/oxrdf/src/variable.rs b/lib/oxrdf/src/variable.rs
index 8bde4d6e..9409dd15 100644
--- a/lib/oxrdf/src/variable.rs
+++ b/lib/oxrdf/src/variable.rs
@@ -12,7 +12,6 @@ use std::fmt;
 ///     "?foo",
 ///     Variable::new("foo")?.to_string()
 /// );
-/// # Result::<_,VariableNameParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Clone, Hash)]
 pub struct Variable {
@@ -73,7 +72,6 @@ impl fmt::Display for Variable {
 ///     "?foo",
 ///     VariableRef::new("foo")?.to_string()
 /// );
-/// # Result::<_,VariableNameParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Ord, PartialOrd, Debug, Clone, Copy, Hash)]
 pub struct VariableRef<'a> {
diff --git a/lib/oxrdfio/src/parser.rs b/lib/oxrdfio/src/parser.rs
index eb60e05e..1f8ad2b3 100644
--- a/lib/oxrdfio/src/parser.rs
+++ b/lib/oxrdfio/src/parser.rs
@@ -52,7 +52,6 @@ use tokio::io::AsyncRead;
 ///
 /// assert_eq!(quads.len(), 1);
 /// assert_eq!(quads[0].subject.to_string(), "<http://example.com/s>");
-/// # std::io::Result::Ok(())
 /// ```
 #[must_use]
 pub struct RdfParser {
@@ -156,7 +155,6 @@ impl RdfParser {
     ///
     /// assert_eq!(quads.len(), 1);
     /// assert_eq!(quads[0].subject.to_string(), "<http://example.com/s>");
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     pub fn with_base_iri(mut self, base_iri: impl Into<String>) -> Result<Self, IriParseError> {
@@ -184,7 +182,6 @@ impl RdfParser {
     ///
     /// assert_eq!(quads.len(), 1);
     /// assert_eq!(quads[0].graph_name.to_string(), "<http://example.com/g>");
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     pub fn with_default_graph(mut self, default_graph: impl Into<GraphName>) -> Self {
@@ -226,7 +223,6 @@ impl RdfParser {
     ///     .rename_blank_nodes()
     ///     .parse_read(file.as_bytes()).collect::<Result<Vec<_>,_>>()?;
     /// assert_ne!(result1, result2);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     pub fn rename_blank_nodes(mut self) -> Self {
@@ -266,7 +262,6 @@ impl RdfParser {
     ///
     /// assert_eq!(quads.len(), 1);
     /// assert_eq!(quads[0].subject.to_string(), "<http://example.com/s>");
-    /// # std::io::Result::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, reader: R) -> FromReadQuadReader<R> {
         FromReadQuadReader {
@@ -362,7 +357,6 @@ impl From<RdfFormat> for RdfParser {
 ///
 /// assert_eq!(quads.len(), 1);
 /// assert_eq!(quads[0].subject.to_string(), "<http://example.com/s>");
-/// # std::io::Result::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadQuadReader<R: Read> {
diff --git a/lib/oxrdfio/src/serializer.rs b/lib/oxrdfio/src/serializer.rs
index cd132cd5..df366544 100644
--- a/lib/oxrdfio/src/serializer.rs
+++ b/lib/oxrdfio/src/serializer.rs
@@ -46,7 +46,6 @@ use tokio::io::AsyncWrite;
 /// writer.finish()?;
 ///
 /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> <http://example.com/g> .\n".as_bytes());
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct RdfSerializer {
@@ -96,7 +95,6 @@ impl RdfSerializer {
     /// writer.finish()?;
     ///
     /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> <http://example.com/g> .\n".as_bytes());
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn serialize_to_write<W: Write>(self, write: W) -> ToWriteQuadWriter<W> {
         ToWriteQuadWriter {
@@ -210,7 +208,6 @@ impl From<RdfFormat> for RdfSerializer {
 /// writer.finish()?;
 ///
 /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> <http://example.com/g> .\n".as_bytes());
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteQuadWriter<W: Write> {
diff --git a/lib/oxrdfxml/src/parser.rs b/lib/oxrdfxml/src/parser.rs
index ba0b27a1..3cc2f03a 100644
--- a/lib/oxrdfxml/src/parser.rs
+++ b/lib/oxrdfxml/src/parser.rs
@@ -47,7 +47,6 @@ use tokio::io::{AsyncRead, BufReader as AsyncBufReader};
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -105,7 +104,6 @@ impl RdfXmlParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, read: R) -> FromReadRdfXmlReader<R> {
         FromReadRdfXmlReader {
@@ -200,7 +198,6 @@ impl RdfXmlParser {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadRdfXmlReader<R: Read> {
diff --git a/lib/oxrdfxml/src/serializer.rs b/lib/oxrdfxml/src/serializer.rs
index a19856f0..6868a971 100644
--- a/lib/oxrdfxml/src/serializer.rs
+++ b/lib/oxrdfxml/src/serializer.rs
@@ -25,7 +25,6 @@ use tokio::io::AsyncWrite;
 ///     b"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\">\n\t<rdf:Description rdf:about=\"http://example.com#me\">\n\t\t<rdf:type rdf:resource=\"http://schema.org/Person\"/>\n\t</rdf:Description>\n</rdf:RDF>",
 ///     writer.finish()?.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -56,7 +55,6 @@ impl RdfXmlSerializer {
     ///     b"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\">\n\t<rdf:Description rdf:about=\"http://example.com#me\">\n\t\t<rdf:type rdf:resource=\"http://schema.org/Person\"/>\n\t</rdf:Description>\n</rdf:RDF>",
     ///     writer.finish()?.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[allow(clippy::unused_self)]
     pub fn serialize_to_write<W: Write>(self, write: W) -> ToWriteRdfXmlWriter<W> {
@@ -122,7 +120,6 @@ impl RdfXmlSerializer {
 ///     b"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\">\n\t<rdf:Description rdf:about=\"http://example.com#me\">\n\t\t<rdf:type rdf:resource=\"http://schema.org/Person\"/>\n\t</rdf:Description>\n</rdf:RDF>",
 ///     writer.finish()?.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteRdfXmlWriter<W: Write> {
diff --git a/lib/oxttl/src/n3.rs b/lib/oxttl/src/n3.rs
index 0642d416..cc61196f 100644
--- a/lib/oxttl/src/n3.rs
+++ b/lib/oxttl/src/n3.rs
@@ -201,7 +201,6 @@ impl From<Quad> for N3Quad {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -270,7 +269,6 @@ impl N3Parser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, read: R) -> FromReadN3Reader<R> {
         FromReadN3Reader {
@@ -353,7 +351,6 @@ impl N3Parser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse(self) -> LowLevelN3Reader {
         LowLevelN3Reader {
@@ -386,7 +383,6 @@ impl N3Parser {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadN3Reader<R: Read> {
@@ -413,7 +409,6 @@ impl<R: Read> FromReadN3Reader<R> {
     ///
     /// reader.next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.prefixes()["schema"], "http://schema.org/"); // There are now prefixes
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn prefixes(&self) -> &HashMap<String, Iri<String>> {
         &self.inner.parser.context.prefixes
@@ -434,7 +429,6 @@ impl<R: Read> FromReadN3Reader<R> {
     ///
     /// reader.next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.base_iri(), Some("http://example.com/")); // There is now a base IRI.
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn base_iri(&self) -> Option<&str> {
         self.inner
@@ -592,7 +586,6 @@ impl<R: AsyncRead + Unpin> FromTokioAsyncReadN3Reader<R> {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelN3Reader {
     parser: Parser<N3Recognizer>,
@@ -644,7 +637,6 @@ impl LowLevelN3Reader {
     ///
     /// reader.read_next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.prefixes()["schema"], "http://schema.org/"); // There are now prefixes
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn prefixes(&self) -> &HashMap<String, Iri<String>> {
         &self.parser.context.prefixes
@@ -666,7 +658,6 @@ impl LowLevelN3Reader {
     ///
     /// reader.read_next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.base_iri(), Some("http://example.com/")); // There is now a base IRI
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn base_iri(&self) -> Option<&str> {
         self.parser
diff --git a/lib/oxttl/src/nquads.rs b/lib/oxttl/src/nquads.rs
index 9be1843b..1f99f67f 100644
--- a/lib/oxttl/src/nquads.rs
+++ b/lib/oxttl/src/nquads.rs
@@ -33,7 +33,6 @@ use tokio::io::{AsyncRead, AsyncWrite, AsyncWriteExt};
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -90,7 +89,6 @@ impl NQuadsParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, read: R) -> FromReadNQuadsReader<R> {
         FromReadNQuadsReader {
@@ -169,7 +167,6 @@ impl NQuadsParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[allow(clippy::unused_self)]
     pub fn parse(self) -> LowLevelNQuadsReader {
@@ -205,7 +202,6 @@ impl NQuadsParser {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadNQuadsReader<R: Read> {
@@ -295,7 +291,6 @@ impl<R: AsyncRead + Unpin> FromTokioAsyncReadNQuadsReader<R> {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelNQuadsReader {
     parser: Parser<NQuadsRecognizer>,
@@ -347,7 +342,6 @@ impl LowLevelNQuadsReader {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> <http://example.com> .\n",
 ///     writer.finish().as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -377,7 +371,6 @@ impl NQuadsSerializer {
     ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> <http://example.com> .\n",
     ///     writer.finish().as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn serialize_to_write<W: Write>(self, write: W) -> ToWriteNQuadsWriter<W> {
         ToWriteNQuadsWriter {
@@ -438,7 +431,6 @@ impl NQuadsSerializer {
     ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> <http://example.com> .\n",
     ///     buf.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[allow(clippy::unused_self)]
     pub fn serialize(&self) -> LowLevelNQuadsWriter {
@@ -463,7 +455,6 @@ impl NQuadsSerializer {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> <http://example.com> .\n",
 ///     writer.finish().as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteNQuadsWriter<W: Write> {
@@ -547,7 +538,6 @@ impl<W: AsyncWrite + Unpin> ToTokioAsyncWriteNQuadsWriter<W> {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> <http://example.com> .\n",
 ///     buf.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelNQuadsWriter;
 
diff --git a/lib/oxttl/src/ntriples.rs b/lib/oxttl/src/ntriples.rs
index 995643bc..8468b85a 100644
--- a/lib/oxttl/src/ntriples.rs
+++ b/lib/oxttl/src/ntriples.rs
@@ -33,7 +33,6 @@ use tokio::io::{AsyncRead, AsyncWrite, AsyncWriteExt};
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -90,7 +89,6 @@ impl NTriplesParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, read: R) -> FromReadNTriplesReader<R> {
         FromReadNTriplesReader {
@@ -169,7 +167,6 @@ impl NTriplesParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[allow(clippy::unused_self)]
     pub fn parse(self) -> LowLevelNTriplesReader {
@@ -205,7 +202,6 @@ impl NTriplesParser {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadNTriplesReader<R: Read> {
@@ -295,7 +291,6 @@ impl<R: AsyncRead + Unpin> FromTokioAsyncReadNTriplesReader<R> {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelNTriplesReader {
     parser: Parser<NQuadsRecognizer>,
@@ -346,7 +341,6 @@ impl LowLevelNTriplesReader {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
 ///     writer.finish().as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -375,7 +369,6 @@ impl NTriplesSerializer {
     ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
     ///     writer.finish().as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn serialize_to_write<W: Write>(self, write: W) -> ToWriteNTriplesWriter<W> {
         ToWriteNTriplesWriter {
@@ -434,7 +427,6 @@ impl NTriplesSerializer {
     ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
     ///     buf.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[allow(clippy::unused_self)]
     pub fn serialize(&self) -> LowLevelNTriplesWriter {
@@ -458,7 +450,6 @@ impl NTriplesSerializer {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
 ///     writer.finish().as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteNTriplesWriter<W: Write> {
@@ -540,7 +531,6 @@ impl<W: AsyncWrite + Unpin> ToTokioAsyncWriteNTriplesWriter<W> {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
 ///     buf.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelNTriplesWriter;
 
diff --git a/lib/oxttl/src/trig.rs b/lib/oxttl/src/trig.rs
index 70d3edb6..c738cbc1 100644
--- a/lib/oxttl/src/trig.rs
+++ b/lib/oxttl/src/trig.rs
@@ -38,7 +38,6 @@ use tokio::io::{AsyncRead, AsyncWrite, AsyncWriteExt};
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -116,7 +115,6 @@ impl TriGParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, read: R) -> FromReadTriGReader<R> {
         FromReadTriGReader {
@@ -197,7 +195,6 @@ impl TriGParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse(self) -> LowLevelTriGReader {
         LowLevelTriGReader {
@@ -236,7 +233,6 @@ impl TriGParser {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadTriGReader<R: Read> {
@@ -263,7 +259,6 @@ impl<R: Read> FromReadTriGReader<R> {
     ///
     /// reader.next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.prefixes()["schema"], "http://schema.org/"); // There are now prefixes
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn prefixes(&self) -> &HashMap<String, Iri<String>> {
         &self.inner.parser.context.prefixes
@@ -284,7 +279,6 @@ impl<R: Read> FromReadTriGReader<R> {
     ///
     /// reader.next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.base_iri(), Some("http://example.com/")); // There is now a base IRI.
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn base_iri(&self) -> Option<&str> {
         self.inner
@@ -440,7 +434,6 @@ impl<R: AsyncRead + Unpin> FromTokioAsyncReadTriGReader<R> {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelTriGReader {
     parser: Parser<TriGRecognizer>,
@@ -492,7 +485,6 @@ impl LowLevelTriGReader {
     ///
     /// reader.read_next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.prefixes()["schema"], "http://schema.org/"); // There are now prefixes
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn prefixes(&self) -> &HashMap<String, Iri<String>> {
         &self.parser.context.prefixes
@@ -514,7 +506,6 @@ impl LowLevelTriGReader {
     ///
     /// reader.read_next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.base_iri(), Some("http://example.com/")); // There is now a base IRI
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn base_iri(&self) -> Option<&str> {
         self.parser
@@ -545,7 +536,6 @@ impl LowLevelTriGReader {
 ///     b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
 ///     writer.finish()?.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -575,7 +565,6 @@ impl TriGSerializer {
     ///     b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
     ///     writer.finish()?.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn serialize_to_write<W: Write>(self, write: W) -> ToWriteTriGWriter<W> {
         ToWriteTriGWriter {
@@ -637,7 +626,6 @@ impl TriGSerializer {
     ///     b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
     ///     buf.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[allow(clippy::unused_self)]
     pub fn serialize(&self) -> LowLevelTriGWriter {
@@ -665,7 +653,6 @@ impl TriGSerializer {
 ///     b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
 ///     writer.finish()?.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteTriGWriter<W: Write> {
@@ -754,7 +741,6 @@ impl<W: AsyncWrite + Unpin> ToTokioAsyncWriteTriGWriter<W> {
 ///     b"<http://example.com> {\n\t<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n}\n",
 ///     buf.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelTriGWriter {
     current_graph_name: GraphName,
diff --git a/lib/oxttl/src/turtle.rs b/lib/oxttl/src/turtle.rs
index 0e225611..e2a31c86 100644
--- a/lib/oxttl/src/turtle.rs
+++ b/lib/oxttl/src/turtle.rs
@@ -40,7 +40,6 @@ use tokio::io::{AsyncRead, AsyncWrite};
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -118,7 +117,6 @@ impl TurtleParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(self, read: R) -> FromReadTurtleReader<R> {
         FromReadTurtleReader {
@@ -199,7 +197,6 @@ impl TurtleParser {
     ///     }
     /// }
     /// assert_eq!(2, count);
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn parse(self) -> LowLevelTurtleReader {
         LowLevelTurtleReader {
@@ -238,7 +235,6 @@ impl TurtleParser {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct FromReadTurtleReader<R: Read> {
@@ -265,7 +261,6 @@ impl<R: Read> FromReadTurtleReader<R> {
     ///
     /// reader.next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.prefixes()["schema"], "http://schema.org/"); // There are now prefixes
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn prefixes(&self) -> &HashMap<String, Iri<String>> {
         &self.inner.parser.context.prefixes
@@ -286,7 +281,6 @@ impl<R: Read> FromReadTurtleReader<R> {
     ///
     /// reader.next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.base_iri(), Some("http://example.com/")); // There is now a base IRI.
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn base_iri(&self) -> Option<&str> {
         self.inner
@@ -442,7 +436,6 @@ impl<R: AsyncRead + Unpin> FromTokioAsyncReadTurtleReader<R> {
 ///     }
 /// }
 /// assert_eq!(2, count);
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelTurtleReader {
     parser: Parser<TriGRecognizer>,
@@ -494,7 +487,6 @@ impl LowLevelTurtleReader {
     ///
     /// reader.read_next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.prefixes()["schema"], "http://schema.org/"); // There are now prefixes
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn prefixes(&self) -> &HashMap<String, Iri<String>> {
         &self.parser.context.prefixes
@@ -516,7 +508,6 @@ impl LowLevelTurtleReader {
     ///
     /// reader.read_next().unwrap()?; // We read the first triple
     /// assert_eq!(reader.base_iri(), Some("http://example.com/")); // There is now a base IRI
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn base_iri(&self) -> Option<&str> {
         self.parser
@@ -546,7 +537,6 @@ impl LowLevelTurtleReader {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
 ///     writer.finish()?.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Default)]
 #[must_use]
@@ -577,7 +567,6 @@ impl TurtleSerializer {
     ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
     ///     writer.finish()?.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn serialize_to_write<W: Write>(self, write: W) -> ToWriteTurtleWriter<W> {
         ToWriteTurtleWriter {
@@ -634,7 +623,6 @@ impl TurtleSerializer {
     ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
     ///     buf.as_slice()
     /// );
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn serialize(&self) -> LowLevelTurtleWriter {
         LowLevelTurtleWriter {
@@ -659,7 +647,6 @@ impl TurtleSerializer {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
 ///     writer.finish()?.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteTurtleWriter<W: Write> {
@@ -739,7 +726,6 @@ impl<W: AsyncWrite + Unpin> ToTokioAsyncWriteTurtleWriter<W> {
 ///     b"<http://example.com#me> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Person> .\n",
 ///     buf.as_slice()
 /// );
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct LowLevelTurtleWriter {
     inner: LowLevelTriGWriter,
diff --git a/lib/sparesults/src/parser.rs b/lib/sparesults/src/parser.rs
index 0a826e96..23eee870 100644
--- a/lib/sparesults/src/parser.rs
+++ b/lib/sparesults/src/parser.rs
@@ -32,7 +32,6 @@ use std::sync::Arc;
 ///         assert_eq!(solution?.iter().collect::<Vec<_>>(), vec![(&Variable::new_unchecked("foo"), &Literal::from("test").into())]);
 ///     }
 /// }
-/// # Result::<(),sparesults::ParseError>::Ok(())
 /// ```
 pub struct QueryResultsParser {
     format: QueryResultsFormat,
@@ -68,7 +67,6 @@ impl QueryResultsParser {
     ///         assert_eq!(solution?.iter().collect::<Vec<_>>(), vec![(&Variable::new_unchecked("foo"), &Literal::from("test").into())]);
     ///     }
     /// }
-    /// # Result::<(),sparesults::ParseError>::Ok(())
     /// ```
     pub fn parse_read<R: Read>(
         &self,
@@ -147,7 +145,6 @@ impl From<QueryResultsFormat> for QueryResultsParser {
 ///         assert_eq!(solution?.iter().collect::<Vec<_>>(), vec![(&Variable::new_unchecked("foo"), &Literal::from("test").into())]);
 ///     }
 /// }
-/// # Result::<(),sparesults::ParseError>::Ok(())
 /// ```
 pub enum FromReadQueryResultsReader<R: Read> {
     Solutions(FromReadSolutionsReader<R>),
@@ -170,7 +167,6 @@ pub enum FromReadQueryResultsReader<R: Read> {
 ///         assert_eq!(solution?.iter().collect::<Vec<_>>(), vec![(&Variable::new_unchecked("foo"), &Literal::from("test").into())]);
 ///     }
 /// }
-/// # Result::<(),sparesults::ParseError>::Ok(())
 /// ```
 pub struct FromReadSolutionsReader<R: Read> {
     variables: Arc<[Variable]>,
@@ -195,7 +191,6 @@ impl<R: Read> FromReadSolutionsReader<R> {
     /// if let FromReadQueryResultsReader::Solutions(solutions) = json_parser.parse_read(b"?foo\t?bar\n\"ex1\"\t\"ex2\"".as_slice())? {
     ///     assert_eq!(solutions.variables(), &[Variable::new_unchecked("foo"), Variable::new_unchecked("bar")]);
     /// }
-    /// # Result::<(),sparesults::ParseError>::Ok(())
     /// ```
     #[inline]
     pub fn variables(&self) -> &[Variable] {
diff --git a/lib/sparesults/src/serializer.rs b/lib/sparesults/src/serializer.rs
index 9a4ba143..0b7cab67 100644
--- a/lib/sparesults/src/serializer.rs
+++ b/lib/sparesults/src/serializer.rs
@@ -43,7 +43,6 @@ use tokio::io::AsyncWrite;
 /// writer.write(once((VariableRef::new_unchecked("foo"), LiteralRef::from("test"))))?;
 /// writer.finish()?;
 /// assert_eq!(buffer, b"{\"head\":{\"vars\":[\"foo\",\"bar\"]},\"results\":{\"bindings\":[{\"foo\":{\"type\":\"literal\",\"value\":\"test\"}}]}}");
-/// # std::io::Result::Ok(())
 /// ```
 pub struct QueryResultsSerializer {
     format: QueryResultsFormat,
@@ -66,7 +65,6 @@ impl QueryResultsSerializer {
     /// let mut buffer = Vec::new();
     /// xml_serializer.serialize_boolean_to_write(&mut buffer, true)?;
     /// assert_eq!(buffer, b"<?xml version=\"1.0\"?><sparql xmlns=\"http://www.w3.org/2005/sparql-results#\"><head></head><boolean>true</boolean></sparql>");
-    /// # std::io::Result::Ok(())
     /// ```
     pub fn serialize_boolean_to_write<W: Write>(&self, write: W, value: bool) -> io::Result<W> {
         match self.format {
@@ -135,7 +133,6 @@ impl QueryResultsSerializer {
     /// writer.write(once((VariableRef::new_unchecked("foo"), LiteralRef::from("test"))))?;
     /// writer.finish()?;
     /// assert_eq!(buffer, b"<?xml version=\"1.0\"?><sparql xmlns=\"http://www.w3.org/2005/sparql-results#\"><head><variable name=\"foo\"/><variable name=\"bar\"/></head><results><result><binding name=\"foo\"><literal>test</literal></binding></result></results></sparql>");
-    /// # std::io::Result::Ok(())
     /// ```
     pub fn serialize_solutions_to_write<W: Write>(
         &self,
@@ -251,7 +248,6 @@ impl From<QueryResultsFormat> for QueryResultsSerializer {
 /// writer.write(once((VariableRef::new_unchecked("foo"), LiteralRef::from("test"))))?;
 /// writer.finish()?;
 /// assert_eq!(buffer, b"?foo\t?bar\n\"test\"\t\n");
-/// # std::io::Result::Ok(())
 /// ```
 #[must_use]
 pub struct ToWriteSolutionsWriter<W: Write> {
@@ -281,7 +277,6 @@ impl<W: Write> ToWriteSolutionsWriter<W> {
     /// writer.write(&QuerySolution::from((vec![Variable::new_unchecked("bar")], vec![Some(Literal::from("test").into())])))?;
     /// writer.finish()?;
     /// assert_eq!(buffer, b"{\"head\":{\"vars\":[\"foo\",\"bar\"]},\"results\":{\"bindings\":[{\"foo\":{\"type\":\"literal\",\"value\":\"test\"}},{\"bar\":{\"type\":\"literal\",\"value\":\"test\"}}]}}");
-    /// # std::io::Result::Ok(())
     /// ```
     pub fn write<'a>(
         &mut self,
diff --git a/lib/spargebra/src/query.rs b/lib/spargebra/src/query.rs
index 6cb7e57b..4f482ef8 100644
--- a/lib/spargebra/src/query.rs
+++ b/lib/spargebra/src/query.rs
@@ -14,7 +14,6 @@ use std::str::FromStr;
 /// let query = Query::parse(query_str, None)?;
 /// assert_eq!(query.to_string(), query_str);
 /// assert_eq!(query.to_sse(), "(project (?s ?p ?o) (bgp (triple ?s ?p ?o)))");
-/// # Ok::<_, spargebra::ParseError>(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub enum Query {
diff --git a/lib/spargebra/src/term.rs b/lib/spargebra/src/term.rs
index 6a33294c..24dfb0cc 100644
--- a/lib/spargebra/src/term.rs
+++ b/lib/spargebra/src/term.rs
@@ -151,7 +151,6 @@ impl TryFrom<Term> for GroundTerm {
 ///         object: NamedNode::new("http://example.com/o")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct GroundTriple {
@@ -246,7 +245,6 @@ impl TryFrom<GraphNamePattern> for GraphName {
 ///         graph_name: NamedNode::new("http://example.com/g")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Quad {
@@ -321,7 +319,6 @@ impl TryFrom<QuadPattern> for Quad {
 ///         graph_name: NamedNode::new("http://example.com/g")?.into(),
 ///     }.to_string()
 /// );
-/// # Result::<_,oxrdf::IriParseError>::Ok(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct GroundQuad {
diff --git a/lib/spargebra/src/update.rs b/lib/spargebra/src/update.rs
index e73b234e..234cf701 100644
--- a/lib/spargebra/src/update.rs
+++ b/lib/spargebra/src/update.rs
@@ -14,7 +14,6 @@ use std::str::FromStr;
 /// let update = Update::parse(update_str, None)?;
 /// assert_eq!(update.to_string().trim(), update_str);
 /// assert_eq!(update.to_sse(), "(update (clear all))");
-/// # Ok::<_, spargebra::ParseError>(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Update {
diff --git a/lib/src/io/read.rs b/lib/src/io/read.rs
index 33065615..35f9d4ec 100644
--- a/lib/src/io/read.rs
+++ b/lib/src/io/read.rs
@@ -25,7 +25,6 @@ use std::io::Read;
 ///
 /// assert_eq!(triples.len(), 1);
 /// assert_eq!(triples[0].subject.to_string(), "<http://example.com/s>");
-/// # std::io::Result::Ok(())
 /// ```
 #[deprecated(note = "use RdfParser instead", since = "0.4.0")]
 pub struct GraphParser {
@@ -55,7 +54,6 @@ impl GraphParser {
     ///
     /// assert_eq!(triples.len(), 1);
     /// assert_eq!(triples[0].subject.to_string(), "<http://example.com/s>");
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     pub fn with_base_iri(self, base_iri: impl Into<String>) -> Result<Self, IriParseError> {
@@ -85,7 +83,6 @@ impl GraphParser {
 ///
 /// assert_eq!(triples.len(), 1);
 /// assert_eq!(triples[0].subject.to_string(), "<http://example.com/s>");
-/// # std::io::Result::Ok(())
 /// ```
 #[must_use]
 pub struct TripleReader<R: Read> {
@@ -116,7 +113,6 @@ impl<R: Read> Iterator for TripleReader<R> {
 ///
 /// assert_eq!(quads.len(), 1);
 /// assert_eq!(quads[0].subject.to_string(), "<http://example.com/s>");
-/// # std::io::Result::Ok(())
 /// ```
 #[deprecated(note = "use RdfParser instead", since = "0.4.0")]
 pub struct DatasetParser {
@@ -144,7 +140,6 @@ impl DatasetParser {
     ///
     /// assert_eq!(triples.len(), 1);
     /// assert_eq!(triples[0].subject.to_string(), "<http://example.com/s>");
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     pub fn with_base_iri(self, base_iri: impl Into<String>) -> Result<Self, IriParseError> {
@@ -174,7 +169,6 @@ impl DatasetParser {
 ///
 /// assert_eq!(quads.len(), 1);
 /// assert_eq!(quads[0].subject.to_string(), "<http://example.com/s>");
-/// # std::io::Result::Ok(())
 /// ```
 #[must_use]
 pub struct QuadReader<R: Read> {
diff --git a/lib/src/io/write.rs b/lib/src/io/write.rs
index 7a9007c0..8ece59c5 100644
--- a/lib/src/io/write.rs
+++ b/lib/src/io/write.rs
@@ -28,7 +28,6 @@ use std::io::{self, Write};
 /// writer.finish()?;
 ///
 /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> .\n".as_bytes());
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[deprecated(note = "use RdfSerializer instead", since = "0.4.0")]
 pub struct GraphSerializer {
@@ -73,7 +72,6 @@ impl GraphSerializer {
 /// writer.finish()?;
 ///
 /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> .\n".as_bytes());
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct TripleWriter<W: Write> {
@@ -113,7 +111,6 @@ impl<W: Write> TripleWriter<W> {
 /// writer.finish()?;
 ///
 /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> <http://example.com/g> .\n".as_bytes());
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[deprecated(note = "use RdfSerializer instead", since = "0.4.0")]
 pub struct DatasetSerializer {
@@ -159,7 +156,6 @@ impl DatasetSerializer {
 /// writer.finish()?;
 ///
 /// assert_eq!(buffer.as_slice(), "<http://example.com/s> <http://example.com/p> <http://example.com/o> <http://example.com/g> .\n".as_bytes());
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[must_use]
 pub struct QuadWriter<W: Write> {
diff --git a/lib/src/sparql/algebra.rs b/lib/src/sparql/algebra.rs
index d83241c6..b3e9b9dd 100644
--- a/lib/src/sparql/algebra.rs
+++ b/lib/src/sparql/algebra.rs
@@ -24,7 +24,6 @@ use std::str::FromStr;
 /// let default = vec![NamedNode::new("http://example.com")?.into()];
 /// query.dataset_mut().set_default_graph(default.clone());
 /// assert_eq!(query.dataset().default_graph_graphs(), Some(default.as_slice()));
-/// # Ok::<_, Box<dyn std::error::Error>>(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Query {
@@ -110,7 +109,6 @@ impl From<spargebra::Query> for Query {
 /// let update = Update::parse(update_str, None)?;
 ///
 /// assert_eq!(update.to_string().trim(), update_str);
-/// # Ok::<_, oxigraph::sparql::ParseError>(())
 /// ```
 #[derive(Eq, PartialEq, Debug, Clone, Hash)]
 pub struct Update {
@@ -220,7 +218,6 @@ impl QueryDataset {
     /// assert!(Query::parse("SELECT ?s ?p ?o WHERE { ?s ?p ?o . }", None)?.dataset().is_default_dataset());
     /// assert!(!Query::parse("SELECT ?s ?p ?o FROM <http://example.com> WHERE { ?s ?p ?o . }", None)?.dataset().is_default_dataset());
     ///
-    /// # Ok::<_, Box<dyn std::error::Error>>(())
     /// ```
     pub fn is_default_dataset(&self) -> bool {
         self.default
@@ -252,7 +249,6 @@ impl QueryDataset {
     /// query.dataset_mut().set_default_graph(default.clone());
     /// assert_eq!(query.dataset().default_graph_graphs(), Some(default.as_slice()));    
     ///
-    /// # Ok::<_, Box<dyn std::error::Error>>(())
     /// ```
     pub fn set_default_graph(&mut self, graphs: Vec<GraphName>) {
         self.default = Some(graphs)
@@ -274,7 +270,6 @@ impl QueryDataset {
     /// query.dataset_mut().set_available_named_graphs(named.clone());
     /// assert_eq!(query.dataset().available_named_graphs(), Some(named.as_slice()));
     ///
-    /// # Ok::<_, Box<dyn std::error::Error>>(())
     /// ```
     pub fn set_available_named_graphs(&mut self, named_graphs: Vec<NamedOrBlankNode>) {
         self.named = Some(named_graphs);
diff --git a/lib/src/sparql/mod.rs b/lib/src/sparql/mod.rs
index f48ea908..c1571262 100644
--- a/lib/src/sparql/mod.rs
+++ b/lib/src/sparql/mod.rs
@@ -152,7 +152,6 @@ pub(crate) fn evaluate_query(
 ///     "SELECT * WHERE { SERVICE <https://query.wikidata.org/sparql> {} }",
 ///     QueryOptions::default().without_service_handler()
 /// )?;
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Clone, Default)]
 pub struct QueryOptions {
@@ -224,7 +223,6 @@ impl QueryOptions {
     /// )? {
     ///     assert_eq!(solutions.next().unwrap()?.get("nt"), Some(&Literal::from("\"1\"^^<http://www.w3.org/2001/XMLSchema#integer>").into()));
     /// }
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     #[must_use]
diff --git a/lib/src/sparql/model.rs b/lib/src/sparql/model.rs
index 326e7603..84db7ea1 100644
--- a/lib/src/sparql/model.rs
+++ b/lib/src/sparql/model.rs
@@ -44,7 +44,6 @@ impl QueryResults {
     /// let mut results = Vec::new();
     /// store.query("SELECT ?s WHERE { ?s ?p ?o }")?.write(&mut results, QueryResultsFormat::Json)?;
     /// assert_eq!(results, "{\"head\":{\"vars\":[\"s\"]},\"results\":{\"bindings\":[{\"s\":{\"type\":\"uri\",\"value\":\"http://example.com\"}}]}}".as_bytes());
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn write(
         self,
@@ -116,7 +115,6 @@ impl QueryResults {
     /// let mut results = Vec::new();
     /// store.query("CONSTRUCT WHERE { ?s ?p ?o }")?.write_graph(&mut results, RdfFormat::NTriples)?;
     /// assert_eq!(results, graph.as_bytes());
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn write_graph(
         self,
@@ -168,7 +166,6 @@ impl<R: Read + 'static> From<FromReadQueryResultsReader<R>> for QueryResults {
 ///         println!("{:?}", solution?.get("s"));
 ///     }
 /// }
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct QuerySolutionIter {
     variables: Arc<[Variable]>,
@@ -200,7 +197,6 @@ impl QuerySolutionIter {
     /// if let QueryResults::Solutions(solutions) = store.query("SELECT ?s ?o WHERE { ?s ?p ?o }")? {
     ///     assert_eq!(solutions.variables(), &[Variable::new("s")?, Variable::new("o")?]);
     /// }
-    /// # Result::<_,Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[inline]
     pub fn variables(&self) -> &[Variable] {
@@ -243,7 +239,6 @@ impl Iterator for QuerySolutionIter {
 ///         println!("{}", triple?);
 ///     }
 /// }
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub struct QueryTripleIter {
     pub(crate) iter: Box<dyn Iterator<Item = Result<Triple, EvaluationError>>>,
diff --git a/lib/src/sparql/service.rs b/lib/src/sparql/service.rs
index 4db172e4..8d5ec8c7 100644
--- a/lib/src/sparql/service.rs
+++ b/lib/src/sparql/service.rs
@@ -46,7 +46,6 @@ use std::time::Duration;
 /// )? {
 ///     assert_eq!(solutions.next().unwrap()?.get("s"), Some(&ex.into()));
 /// }
-/// # Result::<_,Box<dyn std::error::Error>>::Ok(())
 /// ```
 pub trait ServiceHandler: Send + Sync {
     /// The service evaluation error.
diff --git a/lib/src/store.rs b/lib/src/store.rs
index 9b448141..57ae8a75 100644
--- a/lib/src/store.rs
+++ b/lib/src/store.rs
@@ -80,7 +80,6 @@ use std::{fmt, str};
 /// #
 /// # };
 /// # remove_dir_all("example.db")?;
-/// # Result::<_, Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[derive(Clone)]
 pub struct Store {
@@ -174,7 +173,6 @@ impl Store {
     /// if let QueryResults::Solutions(mut solutions) =  store.query("SELECT ?s WHERE { ?s ?p ?o }")? {
     ///     assert_eq!(solutions.next().unwrap()?.get("s"), Some(&ex.into_owned().into()));
     /// }
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn query(
         &self,
@@ -201,7 +199,6 @@ impl Store {
     /// )? {
     ///     assert_eq!(solutions.next().unwrap()?.get("nt"), Some(&Literal::from("\"1\"^^<http://www.w3.org/2001/XMLSchema#integer>").into()));
     /// }
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn query_opt(
         &self,
@@ -230,7 +227,6 @@ impl Store {
     ///     let mut buf = Vec::new();
     ///     explanation.write_in_json(&mut buf)?;
     /// }
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn explain_query_opt(
         &self,
@@ -258,7 +254,6 @@ impl Store {
     /// // quad filter by object
     /// let results = store.quads_for_pattern(None, None, Some((&ex).into()), None).collect::<Result<Vec<_>,_>>()?;
     /// assert_eq!(vec![quad], results);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn quads_for_pattern(
         &self,
@@ -296,7 +291,6 @@ impl Store {
     /// // quad filter by object
     /// let results = store.iter().collect::<Result<Vec<_>,_>>()?;
     /// assert_eq!(vec![quad], results);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn iter(&self) -> QuadIter {
         self.quads_for_pattern(None, None, None, None)
@@ -317,7 +311,6 @@ impl Store {
     ///
     /// store.insert(quad)?;
     /// assert!(store.contains(quad)?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn contains<'a>(&self, quad: impl Into<QuadRef<'a>>) -> Result<bool, StorageError> {
         let quad = EncodedQuad::from(quad.into());
@@ -338,7 +331,6 @@ impl Store {
     /// store.insert(QuadRef::new(ex, ex, ex, ex))?;
     /// store.insert(QuadRef::new(ex, ex, ex, GraphNameRef::DefaultGraph))?;    
     /// assert_eq!(2, store.len()?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn len(&self) -> Result<usize, StorageError> {
         self.storage.snapshot().len()
@@ -357,7 +349,6 @@ impl Store {
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// store.insert(QuadRef::new(ex, ex, ex, ex))?;
     /// assert!(!store.is_empty()?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn is_empty(&self) -> Result<bool, StorageError> {
         self.storage.snapshot().is_empty()
@@ -386,7 +377,6 @@ impl Store {
     ///     }
     ///     Result::<_, StorageError>::Ok(())
     /// })?;
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn transaction<'a, 'b: 'a, T, E: Error + 'static + From<StorageError>>(
         &'b self,
@@ -410,7 +400,6 @@ impl Store {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, GraphNameRef::DefaultGraph))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn update(
         &self,
@@ -434,7 +423,6 @@ impl Store {
     ///         |args| args.get(0).map(|t| Literal::from(t.to_string()).into())
     ///     )
     /// )?;
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn update_opt(
         &self,
@@ -478,7 +466,6 @@ impl Store {
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, NamedNodeRef::new("http://example.com/g")?))?);
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, NamedNodeRef::new("http://example.com/g2")?))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn load_from_read(
         &self,
@@ -517,7 +504,6 @@ impl Store {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, GraphNameRef::DefaultGraph))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[deprecated(note = "use Store.load_from_read instead", since = "0.4.0")]
     pub fn load_graph(
@@ -560,7 +546,6 @@ impl Store {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, ex))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[deprecated(note = "use Store.load_from_read instead", since = "0.4.0")]
     pub fn load_dataset(
@@ -598,7 +583,6 @@ impl Store {
     /// assert!(!store.insert(quad)?);
     ///
     /// assert!(store.contains(quad)?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn insert<'a>(&self, quad: impl Into<QuadRef<'a>>) -> Result<bool, StorageError> {
         let quad = quad.into();
@@ -636,7 +620,6 @@ impl Store {
     /// assert!(!store.remove(quad)?);
     ///
     /// assert!(!store.contains(quad)?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn remove<'a>(&self, quad: impl Into<QuadRef<'a>>) -> Result<bool, StorageError> {
         let quad = quad.into();
@@ -656,7 +639,6 @@ impl Store {
     ///
     /// let buffer = store.dump_to_write(RdfFormat::NQuads, Vec::new())?;
     /// assert_eq!(file, buffer.as_slice());
-    /// # std::io::Result::Ok(())
     /// ```
     pub fn dump_to_write<W: Write>(
         &self,
@@ -690,7 +672,6 @@ impl Store {
     /// let mut buffer = Vec::new();
     /// store.dump_graph_to_write(GraphNameRef::DefaultGraph, RdfFormat::NTriples, &mut buffer)?;
     /// assert_eq!(file, buffer.as_slice());
-    /// # std::io::Result::Ok(())
     /// ```
     pub fn dump_graph_to_write<'a, W: Write>(
         &self,
@@ -721,7 +702,6 @@ impl Store {
     /// let mut buffer = Vec::new();
     /// store.dump_graph(&mut buffer, RdfFormat::NTriples, GraphNameRef::DefaultGraph)?;
     /// assert_eq!(file, buffer.as_slice());
-    /// # std::io::Result::Ok(())
     /// ```
     #[deprecated(note = "use Store.dump_graph_to_write instead", since = "0.4.0")]
     pub fn dump_graph<'a, W: Write>(
@@ -746,7 +726,6 @@ impl Store {
     ///
     /// let buffer = store.dump_dataset(Vec::new(), RdfFormat::NQuads)?;
     /// assert_eq!(file, buffer.as_slice());
-    /// # std::io::Result::Ok(())
     /// ```
     #[deprecated(note = "use Store.dump_to_write instead", since = "0.4.0")]
     pub fn dump_dataset<W: Write>(
@@ -769,7 +748,6 @@ impl Store {
     /// store.insert(QuadRef::new(&ex, &ex, &ex, &ex))?;
     /// store.insert(QuadRef::new(&ex, &ex, &ex, GraphNameRef::DefaultGraph))?;
     /// assert_eq!(vec![NamedOrBlankNode::from(ex)], store.named_graphs().collect::<Result<Vec<_>,_>>()?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn named_graphs(&self) -> GraphNameIter {
         let reader = self.storage.snapshot();
@@ -790,7 +768,6 @@ impl Store {
     /// let store = Store::new()?;
     /// store.insert(QuadRef::new(&ex, &ex, &ex, &ex))?;
     /// assert!(store.contains_named_graph(&ex)?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn contains_named_graph<'a>(
         &self,
@@ -814,7 +791,6 @@ impl Store {
     /// store.insert_named_graph(ex)?;
     ///
     /// assert_eq!(store.named_graphs().collect::<Result<Vec<_>,_>>()?, vec![ex.into_owned().into()]);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn insert_named_graph<'a>(
         &self,
@@ -840,7 +816,6 @@ impl Store {
     /// store.clear_graph(ex)?;
     /// assert!(store.is_empty()?);
     /// assert_eq!(1, store.named_graphs().count());
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn clear_graph<'a>(
         &self,
@@ -868,7 +843,6 @@ impl Store {
     /// assert!(store.remove_named_graph(ex)?);
     /// assert!(store.is_empty()?);
     /// assert_eq!(0, store.named_graphs().count());
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn remove_named_graph<'a>(
         &self,
@@ -893,7 +867,6 @@ impl Store {
     ///
     /// store.clear()?;
     /// assert!(store.is_empty()?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn clear(&self) -> Result<(), StorageError> {
         self.transaction(|mut t| t.clear())
@@ -957,7 +930,6 @@ impl Store {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, ex))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[cfg(not(target_family = "wasm"))]
     pub fn bulk_loader(&self) -> BulkLoader {
@@ -1010,7 +982,6 @@ impl<'a> Transaction<'a> {
     ///     }
     ///     Result::<_, EvaluationError>::Ok(())
     /// })?;
-    /// # Result::<_, EvaluationError>::Ok(())
     /// ```
     pub fn query(
         &self,
@@ -1045,7 +1016,6 @@ impl<'a> Transaction<'a> {
     ///     }
     ///     Result::<_, EvaluationError>::Ok(())
     /// })?;
-    /// # Result::<_, EvaluationError>::Ok(())
     /// ```
     pub fn query_opt(
         &self,
@@ -1075,7 +1045,6 @@ impl<'a> Transaction<'a> {
     ///     }
     ///     Result::<_, StorageError>::Ok(())
     /// })?;
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn quads_for_pattern(
         &self,
@@ -1137,7 +1106,6 @@ impl<'a> Transaction<'a> {
     ///     assert!(transaction.contains(QuadRef::new(ex, ex, ex, GraphNameRef::DefaultGraph))?);
     ///     Result::<_, EvaluationError>::Ok(())
     /// })?;
-    /// # Result::<_, EvaluationError>::Ok(())
     /// ```
     pub fn update(
         &mut self,
@@ -1193,7 +1161,6 @@ impl<'a> Transaction<'a> {
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, NamedNodeRef::new("http://example.com/g")?))?);
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, NamedNodeRef::new("http://example.com/g2")?))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn load_from_read(
         &mut self,
@@ -1225,7 +1192,6 @@ impl<'a> Transaction<'a> {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new_unchecked("http://example.com");
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, GraphNameRef::DefaultGraph))?);
-    /// # Result::<_,oxigraph::store::LoaderError>::Ok(())
     /// ```
     #[deprecated(note = "use Transaction.load_from_read instead", since = "0.4.0")]
     pub fn load_graph(
@@ -1268,7 +1234,6 @@ impl<'a> Transaction<'a> {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new_unchecked("http://example.com");
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, ex))?);
-    /// # Result::<_,oxigraph::store::LoaderError>::Ok(())
     /// ```
     #[deprecated(note = "use Transaction.load_from_read instead", since = "0.4.0")]
     pub fn load_dataset(
@@ -1306,7 +1271,6 @@ impl<'a> Transaction<'a> {
     ///     transaction.insert(quad)
     /// })?;
     /// assert!(store.contains(quad)?);
-    /// # Result::<_,oxigraph::store::StorageError>::Ok(())
     /// ```
     pub fn insert<'b>(&mut self, quad: impl Into<QuadRef<'b>>) -> Result<bool, StorageError> {
         self.writer.insert(quad.into())
@@ -1340,7 +1304,6 @@ impl<'a> Transaction<'a> {
     ///     transaction.remove(quad)
     /// })?;
     /// assert!(!store.contains(quad)?);
-    /// # Result::<_,oxigraph::store::StorageError>::Ok(())
     /// ```
     pub fn remove<'b>(&mut self, quad: impl Into<QuadRef<'b>>) -> Result<bool, StorageError> {
         self.writer.remove(quad.into())
@@ -1380,7 +1343,6 @@ impl<'a> Transaction<'a> {
     ///     transaction.insert_named_graph(ex)
     /// })?;
     /// assert_eq!(store.named_graphs().collect::<Result<Vec<_>,_>>()?, vec![ex.into_owned().into()]);
-    /// # Result::<_,oxigraph::store::StorageError>::Ok(())
     /// ```
     pub fn insert_named_graph<'b>(
         &mut self,
@@ -1405,7 +1367,6 @@ impl<'a> Transaction<'a> {
     /// })?;
     /// assert!(store.is_empty()?);
     /// assert_eq!(1, store.named_graphs().count());
-    /// # Result::<_,oxigraph::store::StorageError>::Ok(())
     /// ```
     pub fn clear_graph<'b>(
         &mut self,
@@ -1432,7 +1393,6 @@ impl<'a> Transaction<'a> {
     /// })?;
     /// assert!(store.is_empty()?);
     /// assert_eq!(0, store.named_graphs().count());
-    /// # Result::<_,oxigraph::store::StorageError>::Ok(())
     /// ```
     pub fn remove_named_graph<'b>(
         &mut self,
@@ -1455,7 +1415,6 @@ impl<'a> Transaction<'a> {
     ///     transaction.clear()
     /// })?;
     /// assert!(store.is_empty()?);
-    /// # Result::<_,oxigraph::store::StorageError>::Ok(())
     /// ```
     pub fn clear(&mut self) -> Result<(), StorageError> {
         self.writer.clear()
@@ -1531,7 +1490,6 @@ impl Iterator for GraphNameIter {
 /// // we inspect the store contents
 /// let ex = NamedNodeRef::new("http://example.com")?;
 /// assert!(store.contains(QuadRef::new(ex, ex, ex, ex))?);
-/// # Result::<_, Box<dyn std::error::Error>>::Ok(())
 /// ```
 #[cfg(not(target_family = "wasm"))]
 #[must_use]
@@ -1641,7 +1599,6 @@ impl BulkLoader {
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, NamedNodeRef::new("http://example.com/g")?))?);
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, NamedNodeRef::new("http://example.com/g2")?))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     pub fn load_from_read(
         &self,
@@ -1697,7 +1654,6 @@ impl BulkLoader {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, ex))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[deprecated(note = "use BulkLoader.load_from_read instead", since = "0.4.0")]
     pub fn load_dataset(
@@ -1758,7 +1714,6 @@ impl BulkLoader {
     /// // we inspect the store contents
     /// let ex = NamedNodeRef::new("http://example.com")?;
     /// assert!(store.contains(QuadRef::new(ex, ex, ex, GraphNameRef::DefaultGraph))?);
-    /// # Result::<_, Box<dyn std::error::Error>>::Ok(())
     /// ```
     #[deprecated(note = "use BulkLoader.load_from_read instead", since = "0.4.0")]
     pub fn load_graph(