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Serde derives Serialize and Deserialize from struct definitions. Attributes rename fields, skip empties, flatten nested structures and set defaults. Chain-adjacent work uses serde_json for RPC payloads and bincode or borsh for compact binary encodings.
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35. Serde and Serialization
Deriving JSON and binary formats.
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1. Which attribute renames a field on the wire?
2. Which format is compact and binary?
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