update test runner for bulk operations

Author: baileympearson

test/tools/unified-spec-runner/operations.ts

@@ -173,7 +173,10 @@ operations.set('assertNumberConnectionsCheckedOut', async ({ entities, operation
 
 operations.set('bulkWrite', async ({ entities, operation }) => {
   const collection = entities.getEntity('collection', operation.object);
-  return collection.bulkWrite(operation.arguments.requests);
+  const operations = operation.arguments.requests;
+  const options = Object.assign({}, operation.arguments);
+  delete options.requests;
+  return collection.bulkWrite(operations, options);
 });
 
 // The entity exists for the name but can potentially have the wrong