core/modules/layout_builder/src/LayoutBuilderOverridableInterface.php


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<?php

namespace Drupal\layout_builder;

/**
 * Provides an interface for displays that could be overridable.
 */
interface LayoutBuilderOverridableInterface {

  /**
   * Determines if the display allows custom overrides.
   *
   * @return bool
   *   TRUE if custom overrides are allowed, FALSE otherwise.
   */
  public function isOverridable();

  /**
   * Sets the display to allow or disallow overrides.
   *
   * @param bool $overridable
   *   TRUE if the display should allow overrides, FALSE otherwise.
   *
   * @return $this
   */
  public function setOverridable($overridable = TRUE);

}