def add_subparser(command, subparsers):
    module_name = 'paasta_tools.cli.cmds.%s' % command
    add_subparser_fn = load_method(module_name, 'add_subparser')
    add_subparser_fn(subparsers)
Test that user-provided namespaces are serialized.
dataset/ETHPy150Open Yelp/paasta/paasta_tools/cli/cli.py/add_subparser--crossover with--dataset/ETHPy150Open STIXProject/python-stix/stix/test/utils/nsparser_test.py/NamespaceInfoTests.test_user_provided_ns