> Aztec.nr API reference, v6.0.0 (mainnet and testnet). Index: https://docs.aztec.network/aztec-nr-api/v6.0.0/llms.txt

# Module contract_class_id

Module: `protocol_types::contract_class_id`

## Structs

- [ContractClassId](/aztec-nr-api/v6.0.0/protocol_types/contract_class_id/struct.ContractClassId.md)