def METHOD_NAME(self):
    METHOD_NAME = []
    filter_fields = [
        'country',
        'level_1',
        'level_2',
        'level_3',
        'level_4',
    ]
    for filter_field in filter_fields:
        if filter_field in self.config and self.config[filter_field]:
            METHOD_NAME.append(EQ(filter_field, filter_field))
    if 'user_id' in self.config and self.config['user_id']:
        METHOD_NAME.append(EQ('doc_id', 'user_id'))
    return METHOD_NAME