Expanded type for queryFitler to allow string (#2882).

Author: ricmoo

packages/contracts/src.ts/index.ts

@@ -1036,7 +1036,7 @@ export class BaseContract {
         }
     }
 
-    queryFilter(event: EventFilter, fromBlockOrBlockhash?: BlockTag | string, toBlock?: BlockTag): Promise<Array<Event>> {
+    queryFilter(event: EventFilter | string, fromBlockOrBlockhash?: BlockTag | string, toBlock?: BlockTag): Promise<Array<Event>> {
         const runningEvent = this._getRunningEvent(event);
         const filter = shallowCopy(runningEvent.filter);