Function grpcio_sys::grpc_tls_key_materials_config_get_version

pub unsafe extern "C" fn grpc_tls_key_materials_config_get_version(
    config: *mut grpc_tls_key_materials_config
) -> c_int

Get the version number of a grpc_tls_key_materials_config instance. It returns the version number on success and -1 on failure. It is used for experimental purpose for now and subject to change.