Method: Show the list of previously attached media.
Method: Return arguments for used by JS.
Action Hook: This action is documented in lib/form/class-input.php
Method: Call save callback.
Action Hook: This action is documented in lib/form/class-input.php
Action Hook: Action trigged after image button before editor.
Filter Hook: Can be used to modify wp_editor settings.
Filter Hook: Filter value before passing it to wp editor.
Action Hook: This action is documented in lib/form/class-input.php
Method: Callback for replacing `apcode` shortcode.