FormInterface submit(null|string|array $submittedData
configureOptions(OptionsResolver
class SubmitButtonBuilder extends ButtonBuilder
string getMessage() Returns the error message.
FormConfigInterface getConfig()
bool getRequired() Returns whether the form is required.
offsetSet($name, $value) Implements \ArrayAccess.
FormFactoryInterface getFormFactory()
bool isEmpty() Returns whether the form is empty.
string getExtendedType() Returns the name of the type being extended.
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