Provides a render element for a group of form elements. In default rendering, the only difference between a 'fieldgroup' and a 'fieldset' is

public static PasswordConfirm::processPasswordConfirm(&$element

public Tel::getInfo() Returns the element

public Page::getInfo() Returns the element

public static Actions::preRenderActionsDropbutton(&$element, FormStateInterface

Convert the submitted value into a route name and parameter pair. File core/lib/Drupal/Core/Render/Element/PathElement

public File::getInfo() Returns the element

public SystemCompactLink::getInfo()

public static Checkboxes::getCheckedCheckboxes(array $input)

public Dropbutton::getInfo() Returns