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Update changelog for 3.21.0 (#967)
2 parents c8a1d82 + 7654841 commit 0f4ca67

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‎Cargo.lock‎

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‎Cargo.toml‎

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@@ -12,7 +12,7 @@ license = "MIT OR Apache-2.0"
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readme = "README.md"
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repository = "https://github.com/jonasbb/serde_with/"
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rust-version = "1.88"
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version = "3.20.0"
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version = "3.21.0"
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[workspace.metadata.release]
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consolidate-commits = true

‎README.md‎

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}
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```
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[`DisplayFromStr`]: https://docs.rs/serde_with/3.20.0/serde_with/struct.DisplayFromStr.html
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[`with_prefix!`]: https://docs.rs/serde_with/3.20.0/serde_with/macro.with_prefix.html
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[`with_suffix!`]: https://docs.rs/serde_with/3.20.0/serde_with/macro.with_suffix.html
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[feature flags]: https://docs.rs/serde_with/3.20.0/serde_with/guide/feature_flags/index.html
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[skip_serializing_none]: https://docs.rs/serde_with/3.20.0/serde_with/attr.skip_serializing_none.html
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[StringWithSeparator]: https://docs.rs/serde_with/3.20.0/serde_with/struct.StringWithSeparator.html
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[user guide]: https://docs.rs/serde_with/3.20.0/serde_with/guide/index.html
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[`DisplayFromStr`]: https://docs.rs/serde_with/3.21.0/serde_with/struct.DisplayFromStr.html
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[`with_prefix!`]: https://docs.rs/serde_with/3.21.0/serde_with/macro.with_prefix.html
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[`with_suffix!`]: https://docs.rs/serde_with/3.21.0/serde_with/macro.with_suffix.html
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[feature flags]: https://docs.rs/serde_with/3.21.0/serde_with/guide/feature_flags/index.html
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[skip_serializing_none]: https://docs.rs/serde_with/3.21.0/serde_with/attr.skip_serializing_none.html
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[StringWithSeparator]: https://docs.rs/serde_with/3.21.0/serde_with/struct.StringWithSeparator.html
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[user guide]: https://docs.rs/serde_with/3.21.0/serde_with/guide/index.html
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[with-annotation]: https://serde.rs/field-attrs.html#with
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[as-annotation]: https://docs.rs/serde_with/3.20.0/serde_with/guide/serde_as/index.html
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[as-annotation]: https://docs.rs/serde_with/3.21.0/serde_with/guide/serde_as/index.html
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## License
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‎serde_with/CHANGELOG.md‎

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@@ -7,9 +7,28 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
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## [Unreleased]
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## [3.21.0] - 2026-06-04
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### Security
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* [GHSA-7gcf-g7xr-8hxj](https://github.com/jonasbb/serde_with/security/advisories/GHSA-7gcf-g7xr-8hxj): KeyValueMap serialization panics on empty sequence or map entries
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Bad or attacker controlled values could cause a panic while allocating too large values.
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Fixed in #966 by setting a maximum allocation size during the creation of collections like `Vec` or sets.
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Thanks to @7thParkk for reporting the issue.
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### Added
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* Add `NoneAsZero` adapter that maps `Option<NonZero*>` to a plain integer, encoding `None` as `0` (#486)
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* Add `NoneAsZero` adapter that maps `Option<NonZero*>` to a plain integer, encoding `None` as `0` by @SAY-5 (#486)
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### Changed
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* Re-enable link-to-definition on docs.rs (#964)
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### Fixed
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* Fix some doc links to point to the correct types (#963)
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* Re-enable `unused_qualifications` and fix the resulting findings by @lms0806 (#962)
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## [3.20.0] - 2026-05-10
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‎serde_with/Cargo.toml‎

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@@ -179,7 +179,7 @@ schemars_0_9 = { package = "schemars", version = "0.9.0", optional = true, defau
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schemars_1 = { package = "schemars", version = "1.0.2", optional = true, default-features = false }
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serde_core = { version = "1.0.225", default-features = false, features = ["result"] }
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serde_json = { version = "1.0.145", optional = true, default-features = false }
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serde_with_macros = { path = "../serde_with_macros", version = "=3.20.0", optional = true }
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serde_with_macros = { path = "../serde_with_macros", version = "=3.21.0", optional = true }
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smallvec_1 = { package = "smallvec", version = "1", optional = true, default-features = false }
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time_0_3 = { package = "time", version = "~0.3.47", optional = true, default-features = false }
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‎serde_with/src/lib.rs‎

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)))]
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// Not needed for 2018 edition and conflicts with `rust_2018_idioms`
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#![doc(test(no_crate_inject))]
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#![doc(html_root_url = "https://docs.rs/serde_with/3.20.0/")]
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#![doc(html_root_url = "https://docs.rs/serde_with/3.21.0/")]
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#![cfg_attr(docsrs, feature(doc_cfg))]
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#![no_std]
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//! # }
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//! ```
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//!
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//! [`DisplayFromStr`]: https://docs.rs/serde_with/3.20.0/serde_with/struct.DisplayFromStr.html
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//! [`with_prefix!`]: https://docs.rs/serde_with/3.20.0/serde_with/macro.with_prefix.html
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//! [`with_suffix!`]: https://docs.rs/serde_with/3.20.0/serde_with/macro.with_suffix.html
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//! [feature flags]: https://docs.rs/serde_with/3.20.0/serde_with/guide/feature_flags/index.html
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//! [skip_serializing_none]: https://docs.rs/serde_with/3.20.0/serde_with/attr.skip_serializing_none.html
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//! [StringWithSeparator]: https://docs.rs/serde_with/3.20.0/serde_with/struct.StringWithSeparator.html
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//! [user guide]: https://docs.rs/serde_with/3.20.0/serde_with/guide/index.html
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//! [`DisplayFromStr`]: https://docs.rs/serde_with/3.21.0/serde_with/struct.DisplayFromStr.html
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//! [`with_prefix!`]: https://docs.rs/serde_with/3.21.0/serde_with/macro.with_prefix.html
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//! [`with_suffix!`]: https://docs.rs/serde_with/3.21.0/serde_with/macro.with_suffix.html
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//! [feature flags]: https://docs.rs/serde_with/3.21.0/serde_with/guide/feature_flags/index.html
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//! [skip_serializing_none]: https://docs.rs/serde_with/3.21.0/serde_with/attr.skip_serializing_none.html
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//! [StringWithSeparator]: https://docs.rs/serde_with/3.21.0/serde_with/struct.StringWithSeparator.html
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//! [user guide]: https://docs.rs/serde_with/3.21.0/serde_with/guide/index.html
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//! [with-annotation]: https://serde.rs/field-attrs.html#with
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//! [as-annotation]: https://docs.rs/serde_with/3.20.0/serde_with/guide/serde_as/index.html
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//! [as-annotation]: https://docs.rs/serde_with/3.21.0/serde_with/guide/serde_as/index.html
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#[cfg(feature = "alloc")]
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extern crate alloc;
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/// # }
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/// ```
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///
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/// [serde_as]: https://docs.rs/serde_with/3.20.0/serde_with/attr.serde_as.html
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/// [serde_as]: https://docs.rs/serde_with/3.21.0/serde_with/attr.serde_as.html
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pub struct As<T: ?Sized>(PhantomData<T>);
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/// Adapter to convert from `serde_as` to the serde traits.
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/// ```
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///
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/// [`chrono::Duration`]: ::chrono_0_4::Duration
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/// [feature flag]: https://docs.rs/serde_with/3.20.0/serde_with/guide/feature_flags/index.html
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/// [feature flag]: https://docs.rs/serde_with/3.21.0/serde_with/guide/feature_flags/index.html
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pub struct DurationSeconds<
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/// ```
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/// [`chrono::Duration`]: ::chrono_0_4::Duration
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/// [feature flag]: https://docs.rs/serde_with/3.20.0/serde_with/guide/feature_flags/index.html
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/// [feature flag]: https://docs.rs/serde_with/3.21.0/serde_with/guide/feature_flags/index.html
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pub struct DurationSecondsWithFrac<
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/// [`SystemTime`]: std::time::SystemTime
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/// [`chrono::DateTime<Local>`]: ::chrono_0_4::DateTime
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/// [`chrono::DateTime<Utc>`]: ::chrono_0_4::DateTime
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/// [feature flag]: https://docs.rs/serde_with/3.20.0/serde_with/guide/feature_flags/index.html
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/// [feature flag]: https://docs.rs/serde_with/3.21.0/serde_with/guide/feature_flags/index.html
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pub struct TimestampSeconds<
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/// [NaiveDateTime]: ::chrono_0_4::NaiveDateTime
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/// [feature flag]: https://docs.rs/serde_with/3.20.0/serde_with/guide/feature_flags/index.html
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/// [feature flag]: https://docs.rs/serde_with/3.21.0/serde_with/guide/feature_flags/index.html
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pub struct TimestampSecondsWithFrac<
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‎serde_with_macros/CHANGELOG.md‎

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## [Unreleased]
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## [3.21.0] - 2026-06-04
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No changes.
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## [3.20.0] - 2026-05-10
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‎serde_with_macros/src/lib.rs‎

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// Not needed for 2018 edition and conflicts with `rust_2018_idioms`
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#![doc(test(no_crate_inject))]
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#![doc(html_root_url = "https://docs.rs/serde_with_macros/3.20.0/")]
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#![doc(html_root_url = "https://docs.rs/serde_with_macros/3.21.0/")]
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// Tarpaulin does not work well with proc macros and marks most of the lines as uncovered.
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#![cfg(not(tarpaulin_include))]
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/// It will also work if the relevant derive is behind a `#[cfg_attr]` attribute
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/// and propagate the `#[cfg_attr]` to the various `#[schemars]` field attributes.
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///
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/// [`serde_as`]: https://docs.rs/serde_with/3.20.0/serde_with/guide/index.html
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/// [re-exporting `serde_as`]: https://docs.rs/serde_with/3.20.0/serde_with/guide/serde_as/index.html#re-exporting-serde_as
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/// [`serde_as`]: https://docs.rs/serde_with/3.21.0/serde_with/guide/index.html
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/// [re-exporting `serde_as`]: https://docs.rs/serde_with/3.21.0/serde_with/guide/serde_as/index.html#re-exporting-serde_as
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/// [`Display`]: std::fmt::Display
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/// [`FromStr`]: std::str::FromStr
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/// [cargo-toml-rename]: https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#renaming-dependencies-in-cargotoml
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/// [serde-as-crate]: https://docs.rs/serde_with/3.20.0/serde_with/guide/serde_as/index.html#re-exporting-serde_as
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/// [serde-as-crate]: https://docs.rs/serde_with/3.21.0/serde_with/guide/serde_as/index.html#re-exporting-serde_as
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/// [serde-crate]: https://serde.rs/container-attrs.html#crate
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#[proc_macro_derive(DeserializeFromStr, attributes(serde_with))]
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/// [`Display`]: std::fmt::Display
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/// [`FromStr`]: std::str::FromStr
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/// [cargo-toml-rename]: https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#renaming-dependencies-in-cargotoml
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/// [serde-as-crate]: https://docs.rs/serde_with/3.20.0/serde_with/guide/serde_as/index.html#re-exporting-serde_as
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/// [serde-as-crate]: https://docs.rs/serde_with/3.21.0/serde_with/guide/serde_as/index.html#re-exporting-serde_as
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/// [serde-crate]: https://serde.rs/container-attrs.html#crate
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#[proc_macro_derive(SerializeDisplay, attributes(serde_with))]
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pub fn derive_serialize_display(item: TokenStream) -> TokenStream {

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