grpc_run_batch_stack_fill_ops(&st, ops_hash);/* callgrpc_call_start_batch, then wait for it to complete using * pluck_event */err =grpc_call_start_batch(call, st.ops, st.op_num, ROBJECT(tag),NULL);if(err != GRPC_CALL_OK) { grpc_run_batch_stack_cleanup(&st); rb_raise(gr...