Provides a form element for a submit button with an image. Plugin annotation

The title resolver. Type:

public static Element::isVisibleElement($element) Determines

public static ElementInterface::setAttributes(&$element

Provides a form element for a set of checkboxes. Properties: #options: An associative

The cache tag invalidator. Type:

public ElementInfoManager::getInfoProperty($type, $property_name

Stores the available element information. Type:

public StatusMessages::getInfo()

hook_extension() Declare a template file extension to be used with a theme engine. This