Bind the switch checkbox to functions for switching between types of
        inputs.

def bind_switcher(cls):
        """
        Bind the switch checkbox to functions for switching between types of
        inputs.
        """
        def show_two_conspect():
            cls.is_twoconspect = True

            # search by class
            for el in cls.two_conspect_el:
                el.style.display = "block"

            cls.whole_conspect_subconspect_el.style.display = "none"

        def hide_two_conspect():
            cls.is_twoconspect = False

            for el in cls.two_conspect_el:
                el.style.display = "none"

            cls.whole_conspect_subconspect_el.style.display = "block"

        def show_or_hide_two_conspect(ev):
            val = cls.get()

            # check / uncheck both checkboxes
            for el in cls.switcher_els:
                el.checked = ev.target.checked

            if ev.target.checked:
                hide_two_conspect()
                cls.set(val)
                return

            show_two_conspect()
            cls.set(val)

        # bind both `conspect_switchers`
        for el in document.get(selector=".conspect_switcher"):
            el.bind("change", show_or_hide_two_conspect)