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# Description This decouples the serialized representation of `Record` from its internal implementation. It now gets treated as a map type in `serde`. This has several benefits: - more efficient representation (not showing inner fields) - human readable e.g. as a JSON record - no breaking changes when refactoring the `Record` internals in the future (see #12326, or potential introduction of `indexmap::IndexMap` for large N) - we now deny the creation of invalid records a non-cooperating plugin could produce - guaranteed key-value correspondence - checking for unique keys # Breaking change to the plugin protocol: Now expects a record/map directly as the `Record.val` field instead of a serialization of it.