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

    (p, q) = [Wild(n, exclude=[x]) for n in 'pq']
    def compute_innermost(expr, res):
        if (not isinstance(expr, Expr)):
            return
        m = expr.match(((p * x) + q))
        if (m and (m[p] != 0)):
            res.add(((- m[q]) / m[p]))
            return
        if expr.is_Atom:
            return
        for arg in expr.args:
            compute_innermost(arg, res)
    innermost = set()
    compute_innermost(expr, innermost)
    return innermost

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

def _find_splitting_points(expr, x):