code: @SuppressWarnings("static-method")
  	protected boolean isAOActiveAnnotationReceiver(XtendTypeDeclaration container) {
  		return container instanceof SarlAgent
  				|| container instanceof SarlBehavior
  				|| container instanceof SarlSkill;
  	}
docs: Replies if the given annotation is an active annotation for agent-oriented elements.
  
  @param container the container to test.
  @return {@code true} if the container could receive an active annotation.
  @see #isOOActiveAnnotation(XAnnotation)
  @see #isAOActiveAnnotation(XAnnotation)