improve comments

crates/eip7702/src/auth_list.rs

@@ -375,7 +375,7 @@ mod tests {
 
 /// Bincode-compatible [`SignedAuthorization`] serde implementation.
 #[cfg(all(feature = "serde", feature = "serde-bincode-compat"))]
-pub mod serde_bincode_compat {
+pub(super) mod serde_bincode_compat {
     use alloc::borrow::Cow;
     use alloy_primitives::Signature;
     use serde::{Deserialize, Deserializer, Serialize, Serializer};
@@ -400,7 +400,6 @@ pub mod serde_bincode_compat {
     /// ```
     #[derive(Debug, Serialize, Deserialize)]
     struct SignedAuthorization<'a> {
-        // Bincode doesn't support `#[serde(flatten)]`: <https://github.com/bincode-org/bincode/issues/167#issuecomment-897629039>
         inner: Cow<'a, Authorization>,
         signature: Cow<'a, Signature>,
     }

crates/eip7702/src/lib.rs

@@ -11,3 +11,15 @@ mod auth_list;
 pub use auth_list::*;
 
 pub mod constants;
+
+/// Bincode-compatible serde implementations for EIP-7702 types.
+///
+/// `bincode` crate doesn't work with `#[serde(flatten)]` attribute, but some of the EIP-7702 types
+/// require flattenning for RPC compatibility. This module makes so that all fields are
+/// non-flattenned.
+///
+/// Read more: <https://github.com/bincode-org/bincode/issues/167#issuecomment-897629039>
+#[cfg(all(feature = "serde", feature = "serde-bincode-compat"))]
+pub mod serde_bincode_compat {
+    pub use super::auth_list::serde_bincode_compat::*;
+}