+/** @type {function(Event, Dygraph, DygraphInteractionContext)} */
+Dygraph.startPan;
+
+/** @type {function(Event, Dygraph, DygraphInteractionContext)} */
+Dygraph.movePan;
+
+/** @type {function(Event, Dygraph, DygraphInteractionContext)} */
+Dygraph.endPan;
+