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

    def __do_wrap(value):
        if isinstance(value, SafeStringWrapper):
            return value
        if isinstance(value, collections.Callable):
            safe_class = CallableSafeStringWrapper
        else:
            safe_class = SafeStringWrapper
        if isinstance(value, no_wrap_classes):
            return value
        if isinstance(value, __DONT_WRAP_TYPES__):
            return sanitize_lists_to_string(value, valid_characters=VALID_CHARACTERS, character_map=CHARACTER_MAP)
        if isinstance(value, __WRAP_NO_SUBCLASS__):
            return safe_class(value, safe_string_wrapper_function=__do_wrap)
        for this_type in (__WRAP_SEQUENCES__ + __WRAP_SETS__):
            if isinstance(value, this_type):
                return this_type(map(__do_wrap, value))
        for this_type in __WRAP_MAPPINGS__:
            if isinstance(value, this_type):
                return this_type(((__do_wrap(x[0]), __do_wrap(x[1])) for x in value.items()))
        try:
            wrapped_class_name = value.__name__
            wrapped_class = value
        except:
            wrapped_class_name = value.__class__.__name__
            wrapped_class = value.__class__
        value_mod = inspect.getmodule(value)
        if value_mod:
            wrapped_class_name = ('%s.%s' % (value_mod.__name__, wrapped_class_name))
        wrapped_class_name = ('SafeStringWrapper(%s:%s)' % (wrapped_class_name, ','.join(sorted(map(str, no_wrap_classes)))))
        do_wrap_func_name = ('__do_wrap_%s' % wrapped_class_name)
        do_wrap_func = __do_wrap
        global_dict = globals()
        if (wrapped_class_name in global_dict):
            wrapped_class = global_dict.get(wrapped_class_name)
            do_wrap_func = global_dict.get(do_wrap_func_name, __do_wrap)
        else:
            try:
                wrapped_class = type(wrapped_class_name, (safe_class, wrapped_class), {})
            except TypeError as e:
                log.warning('Unable    to    create    dynamic    subclass    for    %s,    %s:    %s',...

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

def wrap_with_safe_string(value, no_wrap_classes=None):