human
I wrote the below code

    def verifyCol(strg, locn, toks):
        if (col(locn, strg) != n):
            raise ParseException(strg, locn, ('matched    token    not    at    column    %d' % n))
    return verifyCol

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

def matchOnlyAtCol(n):