interface ContextAwarePluginDefinitionInterface

interface ContextAwarePluginDefinitionInterface extends PluginDefinitionInterface {
    
    /**
     * Checks if the plugin defines a particular context.
     *
     * @param string $name
     *   The context name.
     *
     * @return bool
     *   TRUE if the plugin defines the given context, otherwise FALSE.
     */
    public function hasContextDefinition($name);
    
    /**
     * Returns all context definitions for this plugin.
     *
     * @return \Drupal\Component\Plugin\Context\ContextDefinitionInterface[]
     *   The context definitions.
     */
    public function getContextDefinitions();
    
    /**
     * Returns a particular context definition for this plugin.
     *
     * @param string $name
     *   The context name.
     *
     * @return \Drupal\Component\Plugin\Context\ContextDefinitionInterface
     *   The context definition.
     *
     * @throws \Drupal\Component\Plugin\Exception\ContextException
     *   Thrown if the plugin does not define the given context.
     */
    public function getContextDefinition($name);
    
    /**
     * Adds a context to this plugin definition.
     *
     * @param string $name
     *   The context name.
     * @param \Drupal\Component\Plugin\Context\ContextDefinitionInterface $definition
     *   The context definition.
     *
     * @return $this
     *   The called object.
     */
    public function addContextDefinition($name, ContextDefinitionInterface $definition);
    
    /**
     * Removes a context definition from this plugin.
     *
     * @param string $name
     *   The context name.
     *
     * @return $this
     *   The called object.
     */
    public function removeContextDefinition($name);

}