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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def train(self):
        '''The 'train' subcommand'''

        # Initialize the train subcommand's argparser
        parser = argparse.ArgumentParser(description='Train a dialogue model on a dialogue corpus or a dsrt dataset')
        self.init_train_args(parser)

        # Parse the args we got
        args = parser.parse_args(sys.argv[2:])
        args.config = ConfigurationLoader(args.config).load().model_config

        print(CLI_DIVIDER + '\n')
        Trainer(**vars(args)).run()