public function visitField(Generator $generator, ContentType $contentType, Field $field)
{
$generator->startHashElement('field');
$generator->startValueElement('id', $field->id);
$generator->endValueElement('id');
$generator->startValueElement('fieldDefinitionIdentifier', $field->fieldDefIdentifier);
$generator->endValueElement('fieldDefinitionIdentifier');
$generator->startValueElement('languageCode', $field->languageCode);
$generator->endValueElement('languageCode');
$this->fieldTypeSerializer->serializeFieldValue($generator, $contentType, $field);
$generator->endHashElement('field');
}