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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 init_dataset_prepare_args(self, parser):
        '''Only invoked conditionally if subcommand is 'prepare' '''
        parser.add_argument('-f', '--configuration', dest='config', default=DEFAULT_USER_CONFIG_PATH,
                            help='the path to the configuration file to use -- ./config.yaml by default')
        parser.add_argument('-c', '--corpus-name', help='the name of the corpus to process')
        parser.add_argument('-n', '--dataset-name', help='the name to assign the newly processed dataset')