|SfItemInput * @phpstan-type SfParameterInput iterable * @phpstan-type SfInnerListPair array{0:iterable, 1?:Parameters|SfParameterInput} * @phpstan-type SfItemPair array{0:SfTypeInput, 1?:Parameters|SfParameterInput} */ interface StructuredFieldProvider { /** * Returns one of the StructuredField Data Type class. */ public function toStructuredField(): Dictionary|InnerList|Item|OuterList|Parameters; }