Reuse expected params in tests

Author: erikeldridge

packages/vertexai/src/methods/chrome-adapter.test.ts

@@ -122,16 +122,14 @@ describe('ChromeAdapter', () => {
       const createStub = stub(languageModelProvider, 'create').resolves(
         {} as LanguageModel
       );
+      const expectedOnDeviceParams = {
+        expectedInputs: [{ type: 'image' }]
+      } as LanguageModelCreateOptions;
       const adapter = new ChromeAdapter(
         languageModelProvider,
         'prefer_on_device',
-        {
-          expectedInputs: [{ type: 'image' }]
-        }
+        expectedOnDeviceParams
       );
-      const expectedOnDeviceParams = {
-        expectedInputs: [{ type: 'image' }]
-      } as LanguageModelCreateOptions;
       expect(
         await adapter.isAvailable({
           contents: [{ role: 'user', parts: [{ text: 'hi' }] }]