Append a new model from .rft entry to the journal.

        This instructs Revit to create a new model based on the
        provided .rft template.

        Args:
            template_name (str): optional full path to .rft template
                                 to be used. default value is <None>

def new_model(self, template_name='<None>'):
        """Append a new model from .rft entry to the journal.

        This instructs Revit to create a new model based on the
        provided .rft template.

        Args:
            template_name (str): optional full path to .rft template
                                 to be used. default value is <None>
        """
        self._add_entry(templates.NEW_MODEL
                                 .format(template_name=template_name))