How to use the pyignite.datatypes.StringArray function in pyignite

"""
    Gets existing cache names.

    :param connection: connection to Ignite server,
    :param query_id: (optional) a value generated by client and returned as-is
     in response.query_id. When the parameter is omitted, a random value
     is generated,
    :return: API result data object. Contains zero status and a list of cache
     names, non-zero status and an error description otherwise.
    """

    query_struct = Query(OP_CACHE_GET_NAMES, query_id=query_id)
    result = query_struct.perform(
        connection,
        response_config=[
            ('cache_names', StringArray),
        ],
    )
    if result.status == 0:
        result.value = result.value['cache_names']
    return result

def fields_or_field_count(self):
        if self.include_field_names:
            return 'fields', StringArray
        return 'field_count', Int

def fields_or_field_count(self):
        if self.include_field_names:
            return 'fields', StringArray
        return 'field_count', Int

def fields_or_field_count(self):
        if self.include_field_names:
            return 'fields', StringArray
        return 'field_count', Int