Test for ``1`` as a number or a string and return ``True`` if it is.

        Args:
            value: string or number or None.

        Returns:
            bool: ``True`` if 1 otherwise ``False``.

def __one_equals_true(value):
        '''
        Test for ``1`` as a number or a string and return ``True`` if it is.

        Args:
            value: string or number or None.

        Returns:
            bool: ``True`` if 1 otherwise ``False``.
        '''
        if isinstance(value, six.integer_types) and value == 1:
            return True
        elif (isinstance(value, six.string_types) and
              re.match(r'\d+', value, flags=re.IGNORECASE + re.UNICODE) is not None and
              six.text_type(value) == '1'):
            return True
        return False