grpc-gateway背后的python服务如何发送非ok状态的响应消息？

import grpc
from proto import your_service_pb2, your_service_pb2_grpc

# 创建GRPC通道
channel = grpc.insecure_channel('localhost:50051')

# 创建GRPC客户端
client = your_service_pb2_grpc.YourServiceStub(channel)

# 构造请求消息
request = your_service_pb2.YourRequest()

try:
    # 向服务器发送请求并获取响应
    response = client.YourRPCMethod(request)
except grpc.RpcError as e:
    # 检查是否有非OK状态的响应
    if e.code() != grpc.StatusCode.OK:
        # 创建非OK状态的响应消息
        error_response = your_service_pb2.YourErrorResponse()
        error_response.error_message = "处理请求时发生错误"

        # 发送非OK状态的响应消息
        raise grpc.RpcError(e.details(), error_response, e.initial_metadata())