def _broadcast(operand, *, sizes):
    result_shape = tf.TensorShape(sizes).concatenate(operand.shape)
    return tf.broadcast_to(operand, result_shape)
def _broadcast(operand, *, sizes):
    result_shape = tf.TensorShape(sizes).concatenate(operand.shape)
    return tf.broadcast_to(operand, result_shape)