Builds a dictionary from the DOM element x
        The function
        Uses as hacky splitting of attribute or tag names using {}
            to remove namespaces.
        returns a pair of: the tag of `x` and the honeybadgerfish
            representation of the subelements of x
        Indirect recursion through _hbf_handle_child_elements

def _gen_hbf_el(self, x):
        """
        Builds a dictionary from the DOM element x
        The function
        Uses as hacky splitting of attribute or tag names using {}
            to remove namespaces.
        returns a pair of: the tag of `x` and the honeybadgerfish
            representation of the subelements of x
        Indirect recursion through _hbf_handle_child_elements
        """
        obj = {}
        # grab the tag of x
        el_name = x.nodeName
        assert el_name is not None
        # add the attributes to the dictionary
        att_container = x.attributes
        ns_obj = {}
        if att_container is not None:
            for i in range(att_container.length):
                attr = att_container.item(i)
                n = attr.name
                t = None
                if n.startswith('xmlns'):
                    if n == 'xmlns':
                        t = '$'
                    elif n.startswith('xmlns:'):
                        t = n[6:]  # strip off the xmlns:
                if t is None:
                    obj['@' + n] = attr.value
                else:
                    ns_obj[t] = attr.value
        if ns_obj:
            obj['@xmlns'] = ns_obj

        x.normalize()
        # store the text content of the element under the key '$'
        text_content, ntl = _extract_text_and_child_element_list(x)
        if text_content:
            obj['$'] = text_content
        self._hbf_handle_child_elements(obj, ntl)
        return el_name, obj