showNotify from client.interface.trigger on custom iparams page

I am trying to use client.interface.trigger on my custom iparams page since I have some alternative configurable options but I am getting back an undefined error for trigger. Is this API available on the custom iparams page?


the client.interface object is not accessible on iparams.html, the only features that you can use in iparams.html are request API and Server Method Invocation(SMI).