+/** @type {function(): Array.<Array.<number>>} */
+Dygraph.prototype.yAxisRanges;
+
+/** @type {function(?number, ?number, ?number): Array.<?number>} */
+Dygraph.prototype.toDomCoords
+
+/** @type {function(?number): ?number} */
+Dygraph.prototype.toDomXCoord;
+
+/** @type {function(?number, ?number): ?number} */
+Dygraph.prototype.toDomYCoord;
+
+/** @type {function(?number, ?number, ?number): Array.<?number>} */
+Dygraph.prototype.toDataCoords;
+
+/** @type {function(?number): ?number} */
+Dygraph.prototype.toDataXCoord;
+
+/** @type {function(?number, ?number): ?number} */
+Dygraph.prototype.toDataYCoord;
+
+/** @type {function(?number, ?number): ?number} */
+Dygraph.prototype.toPercentYCoord;
+
+/** @type {function(?number): ?number} */
+Dygraph.prototype.toPercentXCoord;
+
+/** @type {function(): number} */
+Dygraph.prototype.numColumns;
+
+/** @type {function(): number} */
+Dygraph.prototype.numRows;
+
+/** @type {function(number, number)} */
+Dygraph.prototype.getValue;
+
+/** @type {function()} */
+Dygraph.prototype.destroy;
+
+/** @type {function()} */
+Dygraph.prototype.getColors;
+
+/** @type {function(string)} */
+Dygraph.prototype.getPropertiesForSeries;
+
+/** @type {function()} */
+Dygraph.prototype.resetZoom;
+
+/** @type {function(): {x, y, w, h}} */
+Dygraph.prototype.getArea;
+
+/** @type {function(Object): Array.<number>} */
+Dygraph.prototype.eventToDomCoords;
+
+/** @type {function(number, string, boolean): boolean} */
+Dygraph.prototype.setSelection;
+
+/** @type {function()} */
+Dygraph.prototype.clearSelection;
+
+/** @type {function(): number} */
+Dygraph.prototype.getSelection;