def get_transformer_choices():
    """
    :rtype: list
    """
    from luma.emulator.render import transformer
    return [fn for fn in dir(transformer) if fn[0:2] != "__"]
def get_transformer_choices ( ) : from luma . emulator . render import transformer return [ fn for fn in dir ( transformer ) if fn [ 0 : 2 ] != "__" ]
:rtype: list