# Yuqei Python SDK Python client for V2 service-to-service calls. Initial scope: - AI Platform legal QA client. - Request context headers. - Typed request and response models. - Model provider config management. - Prompt template management. - Knowledge import batches, document insert/search, chunk listing, and keyword/vector/hybrid chunk search. - AI run audit listing with retrieved chunk ids and structured source metadata. - Async frozen-candidate semantic review through `AiPlatformClient.create_contract_draft_semantic_review_job(...)`, plus the common model-job get, cancel, and explicit retry methods. Semantic review uses operation `contract_draft_semantic_review`, a fixed Prompt snapshot, and at most the initial attempt plus one explicit retry. There is no automatic repair or fallback-success path. Consumers must reject failed, cancelled, fallback, and receipt-invalid jobs. `semantic_review_execution_identity_errors(request, job, evidence)` rechecks the server-derived receipt against the stored job. The receipt is an integrity record, not a cryptographic signature or legal approval, and does not certify semantic correctness, legal correctness, or adoption. SDK availability does not by itself mean the workflow is enabled in a deployed service.