human
Here's a good function header given the following:
I wrote the below code

    def loop_function(prev, _):
        'function    that    feed    previous    model    output    rather    than    ground    truth.'
        if (output_projection is not None):
            prev = tf.nn.xw_plus_b(prev, output_projection[0], output_projection[1])
        prev_symbol = tf.argmax(prev, 1)
        emb_prev = tf.nn.embedding_lookup(embedding, prev_symbol)
        if (not update_embedding):
            emb_prev = tf.stop_gradient(emb_prev)
        return emb_prev
    return loop_function

What's a good function header?
assistant
#Here's a good function header.

def _extract_argmax_and_embed(embedding, output_projection=None, update_embedding=True):