def load(window, hop=None):
    import tensorflow as tf
    from .model import MOSNet
    tf.debugging.set_log_device_placement(False)
    # set memory growth
    gpus = tf.config.experimental.list_physical_devices('GPU')
    if gpus:
        try:
            # Currently, memory growth needs to be the same across GPUs
            for gpu in gpus:
                tf.config.experimental.set_memory_growth(gpu, True)

            logical_gpus = tf.config.experimental.list_logical_devices('GPU')
            print(len(gpus), "Physical GPUs,",
                  len(logical_gpus), "Logical GPUs")
        except RuntimeError as e:
            # Memory growth must be set before GPUs have been initialized
            print(e)

    mosnet = MOSNet(window, hop)
    return mosnet