def has_validator(field, validator_class):
    return any([
        isinstance(validator, validator_class)
        for validator in field.validators
    ])
Invoke list_extend() with metadata input is of type integer
dataset/ETHPy150Open kvesteri/wtforms-components/wtforms_components/widgets.py/has_validator--crossover with--dataset/ETHPy150Open aerospike/aerospike-client-python/test/new_tests/test_list_extend.py/TestListExtend.test_neg_list_extend_meta_type_integer