1. @DomName('WebGL2RenderingContext.isProgram')
  2. @DocsEditable()
  3. @Experimental()
bool isProgram(Program program)

Source 

@DomName('WebGL2RenderingContext.isProgram')
@DocsEditable()
@Experimental() // untriaged
bool isProgram(Program program) => _blink.BlinkWebGL2RenderingContext.instance
    .isProgram_Callback_1_(this, program);