human
I wrote the below code

    def _helper(value, tabs):
        indent = (' DCTB ' * tabs)
        if value[1]:
            return ('%s<li>%s\n%s<ul>\n%s\n%s</ul>\n%s</li>' % (indent, value[0], indent, '\n'.join([_helper(v, (tabs + 1)) for v in value[1]]), indent, indent))
        else:
            return ('%s<li>%s</li>' % (indent, value[0]))
    return _helper(value, 1)

What's a good function header?

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

def unordered_list(value):