def fetch_form_elements(self):
        rv = {}
        visitor = partial(self._check_node, rv)
        for node in self._children:
            node.walk(visitor)
        return rv
Return active form element nodes, grouped by name in a dictionary.
dataset/ETHPy150Open kdart/pycopia/WWW/pycopia/WWW/XHTML.py/FormMixin.fetch_form_elements