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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def on_toggle_sticky_clicked(self, event, state_m):
 """Callback for the "toggle-sticky-check-button" emitted by custom TabLabel widget. """

        [page, state_identifier] = self.find_page_of_state_m(state_m)
        if not page:
            return
        self.tabs[state_identifier]['is_sticky'] = not self.tabs[state_identifier]['is_sticky']
        page.sticky_button.set_active(self.tabs[state_identifier]['is_sticky'])