human
I wrote the below code

    def callback(lexer, match, context):
        text = match.group()
        if (not text):
            return
        (yield (match.start(), TokenClass, text))
        context.pos = match.end()
    return callback

What's a good function header?

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

def something(TokenClass):