How to use the branca.element.JavascriptLink function in branca

def render(self, **kwargs):
        super(TimestampedWmsTileLayers, self).render()

        figure = self.get_root()
        assert isinstance(figure, Figure), ('You cannot render this Element '
                                            'if it is not in a Figure.')

        figure.header.add_child(
            JavascriptLink('https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js'),  # noqa
            name='jquery2.0.0')

        figure.header.add_child(
            JavascriptLink('https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.10.2/jquery-ui.min.js'),  # noqa
            name='jqueryui1.10.2')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/nezasa/iso8601-js-period/master/iso8601.min.js'),  # noqa
            name='iso8601')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/socib/Leaflet.TimeDimension/master/dist/leaflet.timedimension.min.js'),  # noqa
            name='leaflet.timedimension')

        figure.header.add_child(
            CssLink('https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/styles/default.min.css'),  # noqa
            name='highlight.js_css')

        figure.header.add_child(
            CssLink('http://apps.socib.es/Leaflet.TimeDimension/dist/leaflet.timedimension.control.min.css'),  # noqa

def render(self, **kwargs):
        """Renders the HTML representation of the element."""
        super(RegularPolygonMarker, self).render()

        figure = self.get_root()
        assert isinstance(figure, Figure), ('You cannot render this Element '
                                            'if it is not in a Figure.')

        figure.header.add_child(
            JavascriptLink('https://cdnjs.cloudflare.com/ajax/libs/leaflet-dvf/0.3.0/leaflet-dvf.markers.min.js'),
            # noqa
            name='dvf_js')

def _embed_vegalite_v2(self, figure):
        self._vega_embed()

        figure.header.add_child(JavascriptLink('https://cdn.jsdelivr.net/npm/vega@3'), name='vega')
        figure.header.add_child(JavascriptLink('https://cdn.jsdelivr.net/npm/vega-lite@2'), name='vega-lite')
        figure.header.add_child(JavascriptLink('https://cdn.jsdelivr.net/npm/vega-embed@3'), name='vega-embed')

def render(self, **kwargs):
        figure = self.get_root()
        assert isinstance(figure, Figure), ('You cannot render this Element '
                                            'if it is not in a Figure.')

        figure.header.add_child(JavascriptLink('https://rawcdn.githack.com/jieter/Leaflet.Sync/master/L.Map.Sync.js'),  # noqa
                                name='Leaflet.Sync')

        super(DualMap, self).render(**kwargs)

        for child, name, index in self.children_for_m2:
            if child._id in self.children_for_m2_copied:
                # This map has been rendered before, child was copied already.
                continue
            child_copy = deep_copy(child)
            if isinstance(child_copy, LayerControl):
                child_copy.reset()
            self.m2.add_child(child_copy, name, index)
            # m2 has already been rendered, so render the child here:
            child_copy.render()
            self.children_for_m2_copied.append(child._id)

def render(self, **kwargs):
        super(MousePosition, self).render()

        figure = self.get_root()
        assert isinstance(figure, Figure), ('You cannot render this Element '
                                            'if it is not in a Figure.')

        figure.header.add_child(JavascriptLink('https://rawcdn.githack.com/ardhi/Leaflet.MousePosition/c32f1c84/src/L.Control.MousePosition.js'))  # noqa

        figure.header.add_child(CssLink('https://rawcdn.githack.com/ardhi/Leaflet.MousePosition/c32f1c84/src/L.Control.MousePosition.css'))  # noqa

figure = self._parent.get_root()
        assert isinstance(figure, Figure), (
            "You cannot render this Element if it's not in a Figure.")

        figure.header.add_child(
            CssLink("https://cdnjs.cloudflare.com/ajax/libs/dc/1.7.5/dc.css"),
            name='dcjs_css')
        figure.header.add_child(
            CssLink("https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.css"),
            name='leaflet_css')
        figure.header.add_child(
            CssLink("https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css"),
            name='bootstrap_css')

        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"),
            name='d3js')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.min.js"),  # noqa
            name='crossfilterjs')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/dc/2.0.0-beta.20/dc.js"),
            name='dcjs')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.js"),
            name='leaflet')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"),  # noqa
            name='underscorejs')

def _embed_vegalite_v3(self, figure):
        self._vega_embed()

        figure.header.add_child(JavascriptLink('https://cdn.jsdelivr.net/npm/vega@4'), name='vega')
        figure.header.add_child(JavascriptLink('https://cdn.jsdelivr.net/npm/vega-lite@3'), name='vega-lite')
        figure.header.add_child(JavascriptLink('https://cdn.jsdelivr.net/npm/vega-embed@3'), name='vega-embed')

name='leaflet_css')
        figure.header.add_child(
            CssLink("https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css"),
            name='bootstrap_css')

        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"),
            name='d3js')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.min.js"),  # noqa
            name='crossfilterjs')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/dc/2.0.0-beta.20/dc.js"),
            name='dcjs')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.3/leaflet.js"),
            name='leaflet')
        figure.header.add_child(
            JavascriptLink("https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"),  # noqa
            name='underscorejs')

def render(self, **kwargs):
        super(HeatMapWithTime, self).render(**kwargs)

        figure = self.get_root()
        assert isinstance(figure, Figure), ('You cannot render this Element '
                                            'if it is not in a Figure.')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/nezasa/iso8601-js-period/master/iso8601.min.js'),  # noqa
            name='iso8601')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/socib/Leaflet.TimeDimension/master/dist/leaflet.timedimension.min.js'),  # noqa
            name='leaflet.timedimension.min.js')

        figure.header.add_child(
            JavascriptLink(
                'https://rawcdn.githack.com/python-visualization/folium/master/folium/templates/pa7_hm.min.js'),  # noqa
            name='heatmap.min.js')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/pa7/heatmap.js/develop/plugins/leaflet-heatmap/leaflet-heatmap.js'),  # noqa
            name='leaflet-heatmap.js')

        figure.header.add_child(
            CssLink('http://apps.socib.es/Leaflet.TimeDimension/dist/leaflet.timedimension.control.min.css'),  # noqa
            name='leaflet.timedimension.control.min.css')

        figure.header.add_child(

def render(self, **kwargs):
        super(TimestampedWmsTileLayers, self).render()

        figure = self.get_root()
        assert isinstance(figure, Figure), ('You cannot render this Element '
                                            'if it is not in a Figure.')

        figure.header.add_child(
            JavascriptLink('https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js'),  # noqa
            name='jquery2.0.0')

        figure.header.add_child(
            JavascriptLink('https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.10.2/jquery-ui.min.js'),  # noqa
            name='jqueryui1.10.2')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/nezasa/iso8601-js-period/master/iso8601.min.js'),  # noqa
            name='iso8601')

        figure.header.add_child(
            JavascriptLink('https://rawcdn.githack.com/socib/Leaflet.TimeDimension/master/dist/leaflet.timedimension.min.js'),  # noqa
            name='leaflet.timedimension')

        figure.header.add_child(
            CssLink('https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/styles/default.min.css'),  # noqa