def METHOD_NAME(event: E) -> None:
    """
    Key binding handler for readline-style tab completion.
    This is meant to be as similar as possible to the way how readline displays
    completions.
    Generate the completions immediately (blocking) and display them above the
    prompt in columns.
    Usage::
        # Call this handler when 'Tab' has been pressed.
        key_bindings.add(Keys.ControlI)(display_completions_like_readline)
    """
    # Request completions.
    b = event.current_buffer
    if b.completer is None:
        return
    complete_event = CompleteEvent(completion_requested=True)
    completions = list(b.completer.get_completions(b.document, complete_event))
    # Calculate the common suffix.
    common_suffix = get_common_complete_suffix(b.document, completions)
    # One completion: insert it.
    if len(completions) == 1:
        b.delete_before_cursor(-completions[0].start_position)
        b.insert_text(completions[0].text)
    # Multiple completions with common part.
    elif common_suffix:
        b.insert_text(common_suffix)
    # Otherwise: display all completions.
    elif completions:
        _display_completions_like_readline(event.app, completions)