René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Client get_ticket_types() errors out on \"options\" asset class","articleBody":"**Describe the bug**\n\n\nThe `get_ticker_types()` and/or the `/v3/reference/tickers/types` behaves unexpectedly when `\"options\"` is used as a the asset class.\n\nIf I run the query in the documentation page, I get a 200 response with no results.\n\n\n**To Reproduce**\n\nWith the client:\n\n```\nclient = RESTClient(polygon_key)\ntypes = client.get_ticker_types(asset_class=\"options\", locale=\"us\")\n```\n\nor with requests:\n\n```\nresp = requests.get(\n    url=\"https://api.polygon.io/v3/reference/tickers/types\",\n    params={\n        \"apiKey\": polygon_key,\n        \"asset_class\": \"options\",\n        \"locale\": \"us\",\n    }\n)\nprint(resp.status_code)\nprint(resp.json())\n```\n\n\n**Expected behavior**\n\nI expected to receive the list of ticker types for options, analogously with how the endpoint works for stocks.\n\n**Observed behavior**\n\nUsing the client I get:\n\n`TypeError: polygon.rest.models.tickers.TickerTypes() argument after ** must be a mapping, not NoneType`\n\nand with requests:\n\n```\n200\n{'results': None, 'count': 0, 'status': 'OK', 'request_id': '14e8456dd17092c22d5d062f0c99434d'}\n```\n","author":{"url":"https://github.com/rz","@type":"Person","name":"rz"},"datePublished":"2025-09-01T18:46:51.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/907/client-python/issues/907"}