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-rw-r--r--src/ser.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/ser.rs b/src/ser.rs
index 0a557c2..7ca19f8 100644
--- a/src/ser.rs
+++ b/src/ser.rs
@@ -36,7 +36,7 @@ pub fn to_string<T: ?Sized>(value: &T) -> Result<String, Error>
}
/// Errors that can occur when serializing a type.
-#[derive(Debug, Clone)]
+#[derive(Debug, PartialEq, Eq, Clone)]
pub enum Error {
/// Indicates that a Rust type was requested to be serialized but it was not
/// supported.