code: def test_already_exists(self, mock_hook):
      mock_hook.return_value.create_product.side_effect = AlreadyExists(
          message=""
      )
      # Exception AlreadyExists not raised, caught in the operator's execute() - idempotence
      op = CloudVisionCreateProductOperator(
          location=LOCATION_TEST,
          product=PRODUCT_TEST,
          product_id=PRODUCT_ID_TEST,
          project_id="mock-project-id",
          task_id="id",
      )
      result = op.execute(None)
      assert PRODUCT_ID_TEST == result
  
imports: from __future__ import annotations
  from unittest import mock
  from google.api_core.exceptions import AlreadyExists
  from google.api_core.gapic_v1.method import DEFAULT
  from google.cloud.vision_v1 import Product, ProductSet, ReferenceImage
  from airflow.providers.google.cloud.operators.vision import CloudVisionAddProductToProductSetOperator, CloudVisionCreateProductOperator, CloudVisionCreateProductSetOperator, CloudVisionCreateReferenceImageOperator, CloudVisionDeleteProductOperator, CloudVisionDeleteProductSetOperator, CloudVisionDeleteReferenceImageOperator, CloudVisionDetectImageLabelsOperator, CloudVisionDetectImageSafeSearchOperator, CloudVisionDetectTextOperator, CloudVisionGetProductOperator, CloudVisionGetProductSetOperator, CloudVisionImageAnnotateOperator, CloudVisionRemoveProductFromProductSetOperator, CloudVisionTextDetectOperator, CloudVisionUpdateProductOperator, CloudVisionUpdateProductSetOperator
label_desc: Use image node_id 2 for calling the TestCloudVisionProductCreate obj's underlying member method code with example usage: obj.test_already_exists(mock_hook) without return types