def set_engineering_mode(expert):
    """
    Switches between expert mode and user mode for `BaseInterface` features.

    Current features:
       - Autocomplete filtering

    Parameters
    ----------
    expert: bool
        Set to ``True`` to enable expert mode, or ``False`` to disable it.
        ``True`` is the starting value.
    """
    global engineering_mode
    engineering_mode = bool(expert)
