def main():
print("URL:{}".format(url))
with grpc.insecure_channel(url) as channel:
stub = maze_pb2_grpc.MazeStub(channel)
response = stub.Gen(maze_pb2.GenRequest(w=97, h=45))
print(response.field)
m = Maze(response.field)
m.renderMaze('maze.svg')
