1. @DomName('WebGL2RenderingContext.getVertexAttrib')
  2. @DocsEditable()
  3. @Experimental()
Object getVertexAttrib(int index, int pname)

Source 

@DomName('WebGL2RenderingContext.getVertexAttrib')
@DocsEditable()
@Experimental() // untriaged
Object getVertexAttrib(int index, int pname) =>
    (_blink.BlinkWebGL2RenderingContext.instance
        .getVertexAttrib_Callback_2_(this, index, pname));