code: """A python client interface for ProofAssistantService."""
  
  from __future__ import absolute_import
  from __future__ import division
  # Import Type Annotations
  from __future__ import print_function
  import grpc
  import tensorflow as tf
  from deepmath.proof_assistant import proof_assistant_pb2
  from deepmath.proof_assistant import proof_assistant_pb2_grpc
  
  tf.flags.DEFINE_string(
      'proof_assistant_server_address', 'localhost:2000',
      'address (including port) of the proof assistant server')
  
  FLAGS = tf.flags.FLAGS
  
  GIGABYTE = 1024 * 1024 * 1024
  GRPC_MAX_MESSAGE_LENGTH = GIGABYTE
  
  
  class ProofAssistant(object):
    """Class for intefacing a proof assistant."""
  
    def __init__(self):
      self.channel = grpc.insecure_channel(
          FLAGS.proof_assistant_server_address,
          options=[('grpc.max_send_message_length', GRPC_MAX_MESSAGE_LENGTH),
                   ('grpc.max_receive_message_length', GRPC_MAX_MESSAGE_LENGTH)])
      self.stub = proof_assistant_pb2_grpc.ProofAssistantServiceStub(self.channel)
  
    def ApplyTactic(self, request: proof_assistant_pb2.ApplyTacticRequest
                   ) -> proof_assistant_pb2.ApplyTacticResponse:
      return self.stub.ApplyTactic(request)
  
    def VerifyProof(self, request: proof_assistant_pb2.VerifyProofRequest
                   ) -> proof_assistant_pb2.VerifyProofResponse:
      return self.stub.VerifyProof(request)
  
    def RegisterTheorem(self, request: proof_assistant_pb2.RegisterTheoremRequest
                       ) -> proof_assistant_pb2.RegisterTheoremResponse:
      return self.stub.RegisterTheorem(request)
  
apis: tensorflow.flags.DEFINE_string