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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_xml_to_node(self, node):
 """ For exporting, set data on `node` from ourselves. """

        # pylint: disable=E1101
        # Set node.tag based on our class name.
        node.tag = self.xml_element_name()
        node.set('xblock-family', self.entry_point)

        # Set node attributes based on our fields.
        for field_name, field in self.fields.items():
            if field_name in ('children', 'parent', 'content'):
                continue
            if field.is_set_on(self) or field.force_export:
                self._add_field(node, field_name, field)

        # A content field becomes text content.
        text = self.xml_text_content()
        if text is not None:
            node.text = text