text: #pragma once
  
  #define CHECK_RPC(label, op)                                                   \
      Status __status = op;                                                      \
      if (!__status.ok()) {                                                      \
          printf("RPC error %s: %s\n",                                           \
                 std::string(label).c_str(),                                     \
                 __status.error_message().c_str());                              \
          throw std::runtime_error("RPC error " + std::string(label));           \
      }
  
  #define DEFAULT_RPC_HOST "0.0.0.0"
  #define STATE_PORT 8003
  #define FUNCTION_CALL_PORT 8004
  #define MPI_MESSAGE_PORT 8005
  