Const
Ref https://github.com/paritytech/polkadot-sdk/blob/a84dd0dba58d51503b8942360aa4fb30a5a96af5/polkadot/primitives/src/runtime_api.rs#L129-L134
Ref https://github.com/paritytech/polkadot-sdk/blob/a84dd0dba58d51503b8942360aa4fb30a5a96af5/polkadot/primitives/src/runtime_api.rs#L129-L134