public FormStateInterface::setRequestMethod($method)

public &FormStateInterface::get($property)

public FormStateInterface::cleanValues()

public FormStateInterface::setRedirect($route_name, array $route_parameters

public FormStateInterface::hasTemporaryValue($key)

public FormStateInterface::getButtons()

public FormStateInterface::isExecuted()

public &FormStateInterface::getUserInput()

public &FormStateInterface::getStorage()

public FormStateInterface::setRebuild($rebuild = TRUE)