<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def add_form(self, form, form_name, form_args):
 """ Add new form and switch to it """

        self.parentApp.addForm(form_name, form, **form_args)
        self.parentApp.change_form(form_name)
        return