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3b8eba32 - anthropic[patch]: Fix message type lookup in Anthropic Partners (#16563)

anthropic[patch]: Fix message type lookup in Anthropic Partners (#16563) - **Description:** The parameters for user and assistant in Anthropic should be 'ai -> assistant,' but they are reversed to 'assistant -> ai.' Below is error code. ```python anthropic.BadRequestError: Error code: 400 - {'type': 'error', 'error': {'type': 'invalid_request_error', 'message': 'messages: Unexpected role "ai". Allowed roles are "user" or "assistant"'}} ``` [anthropic](https://github.com/anthropics/anthropic-sdk-python/blob/7177f3a71f940d9f9842063a8198b7c3e92715dd/src/anthropic/types/beta/message_param.py#L13) - **Issue:** : #16561 - **Dependencies:** : None - **Twitter handle:** : None