add get_attributes method to Graph.

Author: theengineear

plotly/widgets/graph_widget.py

@@ -605,3 +605,27 @@ def reorder_traces(self, current_indices, new_indices=None):
         if new_indices is not None:
             message['newIndices'] = new_indices
         self._handle_outgoing_message(message)
+
+    def get_attributes(self, attributes=None, ignore_defaults=False):
+        """
+        Get attributes of the Graph.
+
+        When `attributes` is specified, a dictionary of values is returned with
+        the requested attributes as keys.
+
+        When `attributes` is None, the entire graph object is returned.
+
+        :param (str|str[]|None) attributes: Return listed attributes or entire
+                                            graph.
+        :param (bool) ignore_defaults: If False, find default arguments if user
+                                       didn't define the values. If True,
+                                       return undefined if user didn't define
+                                       the values.
+        """
+        message = {
+            'task': 'getAttributes',
+            'ignoreDefaults': ignore_defaults
+        }
+        if attributes is not None:
+            message['attributes'] = attributes
+        self._handle_outgoing_message(message)