Make tests pass, close #127.
@ -148,7 +148,7 @@ def test_is_counter(empty_parser):
def test_mutually(exclusive_group):
target_arg = find_arg_by_option(exclusive_group, '-i')
json_result = build_radio_group(exclusive_group)[0]
json_result = build_radio_group(exclusive_group)
data = json_result['data'][0]
assert 'RadioGroup' == json_result['type']