How to use the debtcollector._utils.get_qualified_name function in debtcollector

def _check_it(cls):
        if not inspect.isclass(cls):
            _qual, type_name = _utils.get_qualified_name(type(cls))
            raise TypeError("Unexpected class type '%s' (expected"
                            " class type only)" % type_name)

def wrapper(f, instance, args, kwargs):
        qualified, f_name = _utils.get_qualified_name(f)
        if qualified:
            if inspect.isclass(f):
                prefix_pre = "Using class"
                thing_post = ''
            else:
                prefix_pre = "Using function/method"
                thing_post = '()'
        if not qualified:
            prefix_pre = "Using function/method"
            base_name = None
            if instance is None:
                # Decorator was used on a class
                if inspect.isclass(f):
                    prefix_pre = "Using class"
                    thing_post = ''
                    module_name = _get_qualified_name(inspect.getmodule(f))

def _get_qualified_name(obj):
    return _utils.get_qualified_name(obj)[1]

def moved_class(new_class, old_class_name, old_module_name,
                message=None, version=None, removal_version=None,
                stacklevel=3, category=None):
    """Deprecates a class that was moved to another location.

    This creates a 'new-old' type that can be used for a
    deprecation period that can be inherited from. This will emit warnings
    when the old locations class is initialized, telling where the new and
    improved location for the old class now is.
    """

    if not inspect.isclass(new_class):
        _qual, type_name = _utils.get_qualified_name(type(new_class))
        raise TypeError("Unexpected class type '%s' (expected"
                        " class type only)" % type_name)

    old_name = ".".join((old_module_name, old_class_name))
    new_name = _utils.get_class_name(new_class)
    prefix = _CLASS_MOVED_PREFIX_TPL % (old_name, new_name)
    out_message = _utils.generate_message(
        prefix, message=message, version=version,
        removal_version=removal_version)

    def decorator(f):

        @six.wraps(f, assigned=_utils.get_assigned(f))
        def wrapper(self, *args, **kwargs):
            _utils.deprecation(out_message, stacklevel=stacklevel,
                               category=category)

def decorator(f):
        fully_qualified, old_attribute_name = _utils.get_qualified_name(f)
        if attr_postfix:
            old_attribute_name += attr_postfix

        @wrapt.decorator
        def wrapper(wrapped, instance, args, kwargs):
            base_name = _utils.get_class_name(wrapped, fully_qualified=False)
            if fully_qualified:
                old_name = old_attribute_name
            else:
                old_name = ".".join((base_name, old_attribute_name))
            new_name = ".".join((base_name, new_attribute_name))
            prefix = _KIND_MOVED_PREFIX_TPL % (kind, old_name, new_name)
            out_message = _utils.generate_message(
                prefix, message=message,
                version=version, removal_version=removal_version)
            _utils.deprecation(out_message, stacklevel=stacklevel,