Provide structure for the administrative interface to Views. File core/modules/views_ui/views_ui.module

public ViewUI::createDuplicate() Creates

protected ViewsFormBase::setID($id)

public ViewUI::isUninstalling() Returns

public ViewUI::bundle() Gets the bundle

public ConfigHandlerGroup::getFormKey()

public ViewUI::toUrl($rel = 'edit-form', array $options = [])

public ViewUIConverter::applies($definition,

public Display::validateForm(array &$form, FormStateInterface

public Rearrange::submitForm(array &$form, FormStateInterface