code: def grpc_fork_support_disabled():
      
      if LooseVersion(GRPC_VERSION) < '1.18.0':
          key = 'GRPC_ENABLE_FORK_SUPPORT'
          try:
              os.environ[key] = '0'
              yield
          finally:
              del os.environ[key]
      else:
          yield
docs: Temporarily disable fork support in gRPC.
  
      Fork + exec has always been supported, but the recent fork handling code in
      gRPC (>= 1.15) results in extraneous error logs currently. For now we
      explicitly disable fork support for gRPC clients we create.