def get_XYZ_to_RGB_matrix(xy_red, xy_green, xy_blue, xy_white):
    return get_RGB_to_XYZ_matrix(xy_red, xy_green, xy_blue, xy_white).I
L{TransportProxyProducer} instances provide L{IPushProducer}.
dataset/ETHPy150Open mikrosimage/ColorPipe-tools/utils/colors_helper.py/get_XYZ_to_RGB_matrix--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/web/test/test_newclient.py/TransportProxyProducerTests.test_interface