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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 _observed_name(field, name):
 """Adjust field name to reflect `dump_to` and `load_from` attributes. :param Field field: A marshmallow field. :param str name: Field name :rtype: str """

        if MARSHMALLOW_VERSION_INFO[0] < 3:
            # use getattr in case we're running against older versions of marshmallow.
            dump_to = getattr(field, "dump_to", None)
            load_from = getattr(field, "load_from", None)
            return dump_to or load_from or name
        return field.data_key or name