bool mapsForm(int $index) Returns whether an element maps directly to a form. Consider

class FormTypeValidatorExtension extends

TypeGuess|null guessType(string $class, string

class RepeatedTypeValidatorExtension extends

class ViolationPath implements IteratorAggregate,

TypeGuess|null guessTypeForConstraint(

class UploadValidatorExtension extends

class ValidatorTypeGuesser implements

ValueGuess guessRequired(string $class, string

bool isIndex(int $index) Returns whether the element at the given index is an array index.