René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Vision: Operation returned from 'purge_product: raises TypeError in 'done'.","articleBody":"\r\n\r\n#### Environment details\r\n\r\n1. Vision API, Product Search, Purge Product\r\n2. OSX\r\n3. 2.7.14\r\n4. google-cloud-vision 0.39.0\r\n\r\n#### Steps to reproduce\r\n\r\n  1. Run tests or either of the purge product samples from this PR: https://github.com/GoogleCloudPlatform/python-docs-samples/pull/2349\r\n  1. The LRO fails at `operation.done()`\r\n\r\n#### Code example\r\n\r\nsee PR linked above.\r\n\r\n#### Stack trace\r\n```\r\nTraceback (most recent call last):\r\n  File \"/Users/yuhanliu/projects/dpe-github/python-docs-samples/vision/cloud-client/product_search/product_in_product_set_management_test.py\", line 88, in test_purge_products_in_product_set\r\n    PROJECT_ID, LOCATION, PRODUCT_SET_ID, force=True)\r\n  File \"/Users/yuhanliu/projects/dpe-github/python-docs-samples/vision/cloud-client/product_search/product_in_product_set_management.py\", line 153, in purge_products_in_product_set\r\n    if operation.done():\r\n  File \"/Users/yuhanliu/.virtualenvs/vision-ga/lib/python2.7/site-packages/google/api_core/operation.py\", line 162, in done\r\n    self._refresh_and_update()\r\n  File \"/Users/yuhanliu/.virtualenvs/vision-ga/lib/python2.7/site-packages/google/api_core/operation.py\", line 154, in _refresh_and_update\r\n    self._set_result_from_operation()\r\n  File \"/Users/yuhanliu/.virtualenvs/vision-ga/lib/python2.7/site-packages/google/api_core/operation.py\", line 131, in _set_result_from_operation\r\n    self._result_type, self._operation.response\r\n  File \"/Users/yuhanliu/.virtualenvs/vision-ga/lib/python2.7/site-packages/google/api_core/protobuf_helpers.py\", line 69, in from_any_pb\r\n    any_pb.__class__.__name__, pb_type.__name__\r\nTypeError: Could not convert Any to Empty\r\n```\r\n","author":{"url":"https://github.com/dizcology","@type":"Person","name":"dizcology"},"datePublished":"2019-08-30T20:31:02.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":10},"url":"https://github.com/9150/google-cloud-python/issues/9150"}