| Name | Type | Description | Notes |
|---|---|---|---|
| code | int | Protocol code, representing a number of protocol changes since genesis (mod 256, but `-1` for the genesis block) | [optional] |
| hash | string | Hash of the protocol | [optional] |
| version | int | Global version number | [optional] |
| first_level | int | Block height where the protocol was applied | [optional] |
| first_cycle | int | Index of the first cycle started with the protocol | [optional] |
| first_cycle_level | int | Level of the first block of the first cycle started with the protocol | [optional] |
| last_level | int | Block height where the protocol ends. `null` if the protocol is active | [optional] |
| constants | \Bzzhh\Tzkt\Model\ProtocolConstants | [optional] | |
| extras | mixed | Off-chain extras | [optional] |
| metadata | mixed | [DEPRECATED] | [optional] |