1. DomName('WebGL2RenderingContext.framebufferRenderbuffer')
  2. DocsEditable()
  3. Experimental()
void framebufferRenderbuffer(int target, int attachment, int renderbuffertarget, Renderbuffer renderbuffer)

Source 

@DomName('WebGL2RenderingContext.framebufferRenderbuffer')
@DocsEditable()
@Experimental() // untriaged
void framebufferRenderbuffer(int target, int attachment, int renderbuffertarget, Renderbuffer renderbuffer) => _blink.BlinkWebGL2RenderingContext.instance.framebufferRenderbuffer_Callback_4_(this, target, attachment, renderbuffertarget, renderbuffer);