Call page model in panel field

calling kirby()->models() in field template causes page object class to change from Kirby\Panel\Models\Page to Page. Which would be ok since i use the var only within the plugin code. but I expected it to be the models class acctually MytemplatePage.

But calling page model functions still fails. any other way to ‘attach’ the pagemodel class to a current page object?

edited:
i now have a proper model class object but i am gettin this error…

Undefined variable: _client

but there is no var client in mine or all kirby/panel code, right? what am i missing?

edited: oh well. it was my var after all. so nevermind.