Similar to self::$build_info, but pertaining to

public static FormState::hasAnyErrors() Determines

public FormState::setFormState(array $form_state_additions)

public FormState::isBypassingProgrammedAccessChecks()

public FormState::getAlwaysProcess() Determines

public FormState::hasFileElement() Returns

public FormState::setTemporaryValue($key, $value) Sets

public FormState::getRedirect() Gets the

public FormState::has($property) Determines

The HTTP form method to use for finding the input for this form. May be 'POST' or 'GET'. Defaults to 'POST'. Note that 'GET' method forms do