1. @DomName('WebGL2RenderingContext.invalidateFramebuffer')
  2. @DocsEditable()
  3. @Experimental()
void invalidateFramebuffer(int target, List<int> attachments)

Source 

@DomName('WebGL2RenderingContext.invalidateFramebuffer')
@DocsEditable()
@Experimental() // untriaged
void invalidateFramebuffer(int target, List<int> attachments) =>
    _blink.BlinkWebGL2RenderingContext.instance
        .invalidateFramebuffer_Callback_2_(this, target, attachments);