@staticmethod
def _is_string(value):
    """
            Checks if the value provided is a string (True) or not integer
            (False) or something else (None).
        """
    if type(value) in [type(u''), type('')]:
        return True
    elif type(value) in [int, type(2 ** 64)]:
        return False
    else:
        return None
