How to scroll drop down list (js)?

Question

Python

There is a dropdown list.
My code:

...
sel = driver.find_element_by_id('id123')
sel.click() # выпадающий список раскрывается
sel.send_keys(Keys.END) # ошибка

Error text: Element cannot be interacted with via the keyboard because it is not focusable.
Hint required.