Module codec 

Checkpoint serialization codec.

Provides format-agnostic serialization for checkpoint data.

• Default (JSON): Human-readable, backward compatible with all existing checkpoints.
• Binary (MessagePack): Compact and fast, enabled via the binary-codec feature flag.

The codec auto-detects the format on deserialization by inspecting the first byte, so checkpoints written in either format can always be read back regardless of which feature is currently enabled.

Enums

CheckpointFormat

Serialization format for checkpoint data.

Functions

deserialize

Deserialize a value, auto-detecting the format from the data.

serialize

Serialize a value using the specified format.