How to use the bs4.element.NamespacedAttribute function in bs4

def setAttributes(self, attributes):
        if attributes is not None and len(attributes) > 0:

            converted_attributes = []
            for name, value in list(attributes.items()):
                if isinstance(name, tuple):
                    new_name = NamespacedAttribute(*name)
                    del attributes[name]
                    attributes[new_name] = value

            self.soup.builder._replace_cdata_list_attribute_values(
                self.name, attributes)
            for name, value in attributes.items():
                self.element[name] = value

            # The attributes may contain variables that need substitution.
            # Call set_up_substitutions manually.
            #
            # The Tag constructor called this method when the Tag was created,
            # but we just set/changed the attributes, so call it again.
            self.soup.builder.set_up_substitutions(self.element)
    attributes = property(getAttributes, setAttributes)

for prefix, namespace in list(nsmap.items()):
                attribute = NamespacedAttribute(
                    "xmlns", prefix, "http://www.w3.org/2000/xmlns/")
                attrs[attribute] = namespace

        # Namespaces are in play. Find any attributes that came in
        # from lxml with namespaces attached to their names, and
        # turn then into NamespacedAttribute objects.
        new_attrs = {}
        for attr, value in list(attrs.items()):
            namespace, attr = self._getNsTag(attr)
            if namespace is None:
                new_attrs[attr] = value
            else:
                nsprefix = self._prefix_for_namespace(namespace)
                attr = NamespacedAttribute(nsprefix, attr, namespace)
                new_attrs[attr] = value
        attrs = new_attrs

        namespace, name = self._getNsTag(name)
        nsprefix = self._prefix_for_namespace(namespace)
        self.soup.handle_starttag(name, namespace, nsprefix, attrs)

def setAttributes(self, attributes):

        if attributes is not None and len(attributes) > 0:

            converted_attributes = []
            for name, value in list(attributes.items()):
                if isinstance(name, tuple):
                    new_name = NamespacedAttribute(*name)
                    del attributes[name]
                    attributes[new_name] = value

            self.soup.builder._replace_cdata_list_attribute_values(
                self.name, attributes)
            for name, value in list(attributes.items()):
                self.element[name] = value

            # The attributes may contain variables that need substitution.
            # Call set_up_substitutions manually.
            #
            # The Tag constructor called this method when the Tag was created,
            # but we just set/changed the attributes, so call it again.
            self.soup.builder.set_up_substitutions(self.element)
    attributes = property(getAttributes, setAttributes)

for prefix, namespace in list(nsmap.items()):
                attribute = NamespacedAttribute(
                    "xmlns", prefix, "http://www.w3.org/2000/xmlns/")
                attrs[attribute] = namespace

        # Namespaces are in play. Find any attributes that came in
        # from lxml with namespaces attached to their names, and
        # turn then into NamespacedAttribute objects.
        new_attrs = {}
        for attr, value in list(attrs.items()):
            namespace, attr = self._getNsTag(attr)
            if namespace is None:
                new_attrs[attr] = value
            else:
                nsprefix = self._prefix_for_namespace(namespace)
                attr = NamespacedAttribute(nsprefix, attr, namespace)
                new_attrs[attr] = value
        attrs = new_attrs

        namespace, name = self._getNsTag(name)
        nsprefix = self._prefix_for_namespace(namespace)
        self.soup.handle_starttag(name, namespace, nsprefix, attrs)

def setAttributes(self, attributes):

        if attributes is not None and len(attributes) > 0:

            converted_attributes = []
            for name, value in list(attributes.items()):
                if isinstance(name, tuple):
                    new_name = NamespacedAttribute(*name)
                    del attributes[name]
                    attributes[new_name] = value

            self.soup.builder._replace_cdata_list_attribute_values(
                self.name, attributes)
            for name, value in attributes.items():
                self.element[name] = value

            # The attributes may contain variables that need substitution.
            # Call set_up_substitutions manually.
            #
            # The Tag constructor called this method when the Tag was created,
            # but we just set/changed the attributes, so call it again.
            self.soup.builder.set_up_substitutions(self.element)
    attributes = property(getAttributes, setAttributes)

nsprefix = None
        # Invert each namespace map as it comes in.
        if len(self.nsmaps) > 1:
            # There are no new namespaces for this tag, but
            # non-default namespaces are in play, so we need a
            # separate tag stack to know when they end.
            self.nsmaps.append(None)
        elif len(nsmap) > 0:
            # A new namespace mapping has come into play.
            inverted_nsmap = dict((value, key) for key, value in list(nsmap.items()))
            self.nsmaps.append(inverted_nsmap)
            # Also treat the namespace mapping as a set of attributes on the
            # tag, so we can recreate it later.
            attrs = attrs.copy()
            for prefix, namespace in list(nsmap.items()):
                attribute = NamespacedAttribute(
                    "xmlns", prefix, "http://www.w3.org/2000/xmlns/")
                attrs[attribute] = namespace

        # Namespaces are in play. Find any attributes that came in
        # from lxml with namespaces attached to their names, and
        # turn then into NamespacedAttribute objects.
        new_attrs = {}
        for attr, value in list(attrs.items()):
            namespace, attr = self._getNsTag(attr)
            if namespace is None:
                new_attrs[attr] = value
            else:
                nsprefix = self._prefix_for_namespace(namespace)
                attr = NamespacedAttribute(nsprefix, attr, namespace)
                new_attrs[attr] = value
        attrs = new_attrs

rv.append("|%s" % (' ' * indent,))
            elif isinstance(element, Comment):
                rv.append("|%s" % (' ' * indent, element))
            elif isinstance(element, NavigableString):
                rv.append("|%s\"%s\"" % (' ' * indent, element))
            else:
                if element.namespace:
                    name = "%s %s" % (prefixes[element.namespace],
                                      element.name)
                else:
                    name = element.name
                rv.append("|%s<%s>" % (' ' * indent, name))
                if element.attrs:
                    attributes = []
                    for name, value in list(element.attrs.items()):
                        if isinstance(name, NamespacedAttribute):
                            name = "%s %s" % (prefixes[name.namespace], name.name)
                        if isinstance(value, list):
                            value = " ".join(value)
                        attributes.append((name, value))

                    for name, value in sorted(attributes):
                        rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
                indent += 2
                for child in element.children:
                    serializeElement(child, indent)
        serializeElement(element, 0)

def setAttributes(self, attributes):
        if attributes is not None and attributes != {}:
            for name, value in list(attributes.items()):
                if isinstance(name, tuple):
                    name = NamespacedAttribute(*name)
                self.element[name] =  value
            # The attributes may contain variables that need substitution.
            # Call set_up_substitutions manually.
            #
            # The Tag constructor called this method when the Tag was created,
            # but we just set/changed the attributes, so call it again.
            self.element.contains_substitutions = (
                self.soup.builder.set_up_substitutions(
                    self.element))
    attributes = property(getAttributes, setAttributes)