def METHOD_NAME(self) -> None:
    """
    create a combobox that has all the known emane models
    """
    frame = ttk.Frame(self.top)
    frame.grid(sticky=tk.EW, pady=PADY)
    frame.columnconfigure(1, weight=1)
    label = ttk.Label(frame, text="Model")
    label.grid(row=0, column=0, sticky=tk.W)
    # create combo box and its binding
    state = "readonly" if self.enabled else tk.DISABLED
    combobox = ttk.Combobox(
        frame, textvariable=self.emane_model, values=self.emane_models, state=state
    )
    combobox.grid(row=0, column=1, sticky=tk.EW)
    combobox.bind("<<ComboboxSelected>>", self.emane_model_change)