chore(deps): update dependency typescript to ~3.2.0 (#264)

package.json

@@ -84,7 +84,7 @@
     "prettier": "^1.13.5",
     "proxyquire": "^2.0.1",
     "sinon": "^7.0.0",
-    "typescript": "~3.1.5"
+    "typescript": "~3.2.0"
   },
   "nyc": {
     "exclude": [

src/transaction.ts

@@ -274,7 +274,7 @@ class Transaction extends DatastoreRequest {
    * });
    */
   createQuery(namespace: string, kind?: string) {
-    return this.datastore.createQuery.apply(this, arguments);
+    return this.datastore.createQuery.call(this, namespace, kind);
   }
 
   /**

system-test/datastore.ts

@@ -25,8 +25,8 @@ describe('Datastore', () => {
   // Override the Key method so we can track what keys are created during the
     // tests. They are then deleted in the `after` hook.
   const key = datastore.key;
-  datastore.key = function() {
-    const keyObject = key.apply(this, arguments);
+  datastore.key = function(options) {
+    const keyObject = key.call(this, options);
     testKinds.push(keyObject.kind);
     return keyObject;
   };

test/request.ts

@@ -22,9 +22,8 @@ import * as sinon from 'sinon';
 import * as through from 'through2';
 import * as pfy from '@google-cloud/promisify';
 import * as pjy from '@google-cloud/projectify';
-
-const {entity} = require('../src/entity.js');
-const {Query} = require('../src/query.js');
+import {entity} from '../src/entity.js';
+import {Query} from '../src/query.js';
 
 let promisified = false;
 const fakePfy = Object.assign({}, pfy, {
@@ -963,7 +962,7 @@ describe('Request', function() {
             entities.push(entity);
           })
           .on('end', function() {
-            const allResults = [].slice
+            const allResults = ([] as Array<{}>).slice
               .call(entityResultsPerApiCall[1])
               .concat(entityResultsPerApiCall[2]);
 

test/transaction.ts

@@ -342,15 +342,13 @@ describe('Transaction', function() {
 
   describe('createQuery', function() {
     it('should return query from datastore.createQuery', function() {
-      const args = [0, 1, 2, 3];
+      const args = [0, 1];
       const createQueryReturnValue = {};
 
       transaction.datastore.createQuery = function(...ags) {
         assert.strictEqual(this, transaction);
         assert.strictEqual(ags[0], args[0]);
         assert.strictEqual(ags[1], args[1]);
-        assert.strictEqual(ags[2], args[2]);
-        assert.strictEqual(ags[3], args[3]);
         return createQueryReturnValue;
       };