def draw(self, directed=True, layout="spring",
             node_label_attr=None, show_node_labels=True,
             edge_label_attr=None, show_edge_labels=True,
             node_size=1600, node_color='blue', node_alpha=0.3,
             node_text_size=12,
             edge_color='blue', edge_alpha=0.3, edge_tickness=1,
             edge_text_pos=0.3,
             text_font='sans-serif', ax=None):
        """Plot of a NetworkX multi-graph instance

        :param directed: boolean, optional (default=`True`).
            Whether to return a directed graph or not.
        :param layout: string, optional (default=`"spring"`).
            Layout to apply. Any of the possible NetworkX layouts will work:
            ``'circular_layout'``, ``'random_layout'``, ``'shell_layout'``,
            ``'spring_layout'``, ``'spectral_layout'``,
            or ``'fruchterman_reingold_layout'``.
        :param node_label_attr: string, optional (default=`None`).
            Attribute of the nodes that has to be used as the label.
        :param show_node_labels: boolean, optional (default=`True`).
            Whether to show or not the labels of the nodes.
        :param edge_label_attr: boolean, optional (default=`None`).
            Attribute of the edges that has to be used as the label.
        :param show_edge_labels: . optional (default=`True`).
            Whether to show or not the labels of the edges.
        :param node_size: integer, optional (default=`1600`).
            Desired size for nodes.
        :param node_color: color string, or array of floats, (default=`'blue'`)
            Node color. Can be a single color format string, or a sequence of
            colors with the same length as nodelist. If numeric values are
            specified they will be mapped to colors using the ``cmap`` and
            ``vmin``, ``vmax`` parameters. See ``matplotlib.scatter`` for more
            details.
        :param node_alpha: float, optional (default=`0.3`).
            Between 0 and 1 for transparency of nodes.
        :param node_text_size: integer, optional (default=`12`).
            Size of the node text.
        :param edge_color: color string, or array of floats (default=`'blue'`)
            Edge color. Can be a single color format string, or a sequence of
            colors with the same length as edgelist. If numeric values are
            specified they will be mapped to colors using the ``edge_cmap`` and
            ``edge_vmin``, ``edge_vmax`` parameters.
        :param edge_alpha: float, optional (default=`0.3`)
            Transparency for thee edges.
        :param edge_tickness: float or integer, optional (default=`1`).
            Thickness of the lines drawn for the edges.
        :param edge_text_pos: . Default to optional (d0)=
        :param text_font: . Default to optional (default=`'sans-serif'`).
        :param ax: ``matplotlib.Figure``, optional (default=`None`).
            A ``matplotlib.Figure`` to use when rendering the graph. If `None`,
            a new object is created and returned.----

        :return: a ``matplotlib.Figure`` with the graph rendered.
        """
        graph = self.get_graph(directed=directed)
        pos = getattr(nx, "{}_layout".format(layout))(graph)
        node_labels = {}
        edge_labels = {}
        node_colors = set()
        if show_node_labels:
            for node, props in graph.nodes(data=True):
                labels = props.pop('labels', [])
                for label in labels:
                    node_colors.add(label)
                if node_label_attr is None:
                    node_labels[node] = "$:{}$\n{}".format(
                        ":".join(labels),
                        next(iter(props.values())) if props else "",
                    )
                else:
                    props_list = ["{}: {}".format(k, v)
                                  for k, v in props.items()]
                    node_labels[node] = "$:{}$\n{}".format(
                        ":".join(labels), "\n".join(props_list)
                    )
        node_color = []
        node_colors = list(node_colors)
        legend_colors = []
        colors = list(plt.matplotlib.colors.ColorConverter().cache.items())[2:]
        for _, color_rgb in colors[:len(node_colors)]:
            node_color.append(color_rgb)
            legend_colors.append(color_rgb)
        if show_edge_labels:
            for start, end, props in graph.edges(data=True):
                if edge_label_attr is None:
                    edge_label = props.get("type", '')
                else:
                    edge_label = props.get(edge_label_attr, '')
                edge_labels[(start, end)] = edge_label
        if not ax:
            fig = plt.figure()
            ax = fig.add_subplot(111)
        nodes = nx.draw_networkx_nodes(
            graph, pos=pos, node_color=node_color,
            node_size=node_size, alpha=node_alpha,
            ax=ax
        )
        nx.draw_networkx_labels(
            graph, pos=pos, labels=node_labels,
            font_size=node_text_size,
            font_family=text_font,
            ax=ax
        )
        nx.draw_networkx_edges(
            graph, pos=pos, width=edge_tickness,
            alpha=edge_alpha, edge_color=edge_color,
            ax=ax
        )
        nx.draw_networkx_edge_labels(
            graph, pos=pos, edge_labels=edge_labels,
            ax=ax
        )
        ax.legend([plt.Line2D([0], [0], linestyle="none", marker="o",
                              alpha=node_alpha,
                              markersize=10, markerfacecolor=color)
                  for color in legend_colors],
                  node_colors, loc=(-0.25, 1), numpoints=1, frameon=False)
        ax.set_axis_off()
        return graph, ax, nodes
Plot of a NetworkX multi-graph instance

        :param directed: boolean, optional (default=`True`).
            Whether to return a directed graph or not.
        :param layout: string, optional (default=`"spring"`).
            Layout to apply. Any of the possible NetworkX layouts will work:
            ``'circular_layout'``, ``'random_layout'``, ``'shell_layout'``,
            ``'spring_layout'``, ``'spectral_layout'``,
            or ``'fruchterman_reingold_layout'``.
        :param node_label_attr: string, optional (default=`None`).
            Attribute of the nodes that has to be used as the label.
        :param show_node_labels: boolean, optional (default=`True`).
            Whether to show or not the labels of the nodes.
        :param edge_label_attr: boolean, optional (default=`None`).
            Attribute of the edges that has to be used as the label.
        :param show_edge_labels: . optional (default=`True`).
            Whether to show or not the labels of the edges.
        :param node_size: integer, optional (default=`1600`).
            Desired size for nodes.
        :param node_color: color string, or array of floats, (default=`'blue'`)
            Node color. Can be a single color format string, or a sequence of
            colors with the same length as nodelist. If numeric values are
            specified they will be mapped to colors using the ``cmap`` and
            ``vmin``, ``vmax`` parameters. See ``matplotlib.scatter`` for more
            details.
        :param node_alpha: float, optional (default=`0.3`).
            Between 0 and 1 for transparency of nodes.
        :param node_text_size: integer, optional (default=`12`).
            Size of the node text.
        :param edge_color: color string, or array of floats (default=`'blue'`)
            Edge color. Can be a single color format string, or a sequence of
            colors with the same length as edgelist. If numeric values are
            specified they will be mapped to colors using the ``edge_cmap`` and
            ``edge_vmin``, ``edge_vmax`` parameters.
        :param edge_alpha: float, optional (default=`0.3`)
            Transparency for thee edges.
        :param edge_tickness: float or integer, optional (default=`1`).
            Thickness of the lines drawn for the edges.
        :param edge_text_pos: . Default to optional (d0)=
        :param text_font: . Default to optional (default=`'sans-serif'`).
        :param ax: ``matplotlib.Figure``, optional (default=`None`).
            A ``matplotlib.Figure`` to use when rendering the graph. If `None`,
            a new object is created and returned.----

        :return: a ``matplotlib.Figure`` with the graph rendered.