1. @DomName('WebGL2RenderingContext.samplerParameterf')
  2. @DocsEditable()
  3. @Experimental()
void samplerParameterf(Sampler sampler, int pname, num param)

Source 

@DomName('WebGL2RenderingContext.samplerParameterf')
@DocsEditable()
@Experimental() // untriaged
void samplerParameterf(Sampler sampler, int pname, num param) =>
    _blink.BlinkWebGL2RenderingContext.instance
        .samplerParameterf_Callback_3_(this, sampler, pname, param);