pub fn define_api<State, Types, Ver: StaticVersionType + 'static>(
options: &Options,
_: Ver,
api_ver: Version,
) -> Result<Api<State, Error, Ver>, ApiError>where
Types: NodeType,
Header<Types>: QueryableHeader<Types>,
State: 'static + Send + Sync + ReadState,
<State as ReadState>::State: NodeDataSource<Types> + Send + Sync,