FormFactoryBuilderInterface
FormConfigBuilderInterface
string getAction() Returns the target URL of the form.
FormInterface getForm()
string getBlockPrefix() Returns the prefix of the template block name for this type. The
class SubmitButton extends Button implements
offsetUnset(string $name) Removes a child (implements \ArrayAccess).
mixed getResourceForBlockName(FormView $view, string $blockName)
FormTypeGuesserInterface|null
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