grpc_invoke_arg_stack_async_with_attr_np - Executes an RPC.
int grpc_invoke_arg_stack_async_with_attr_np(grpc_object_handle_t_np *handle,
char *method_name,
grpc_session_attr_t_np *session_attr,
grpc_arg_stack_t *stack)
grpc_object_handle_t_np *handle char *method_name grpc_session_attr_t_np *session_attr grpc_arg_stack_t *stackThis function is MT-safe.
GRPC_NOT_INITIALIZED GRPC_OTHER_ERROR_CODE