Method _build_key

examples/server/server.py:10439–10456

(
        *,
        model_fingerprint: str,
        mmproj_fingerprint: str,
        kind: Literal["image", "audio", "video"],
        media_bytes: bytes,
    )

    @staticmethod
    def _build_key(
        *,
        model_fingerprint: str,
        mmproj_fingerprint: str,
        kind: Literal["image", "audio", "video"],
        media_bytes: bytes,
    ) -> str:
        digest = hashlib.sha256(f"{kind}:".encode("utf-8") + media_bytes).hexdigest()
        payload = ":".join(
            [
                MTMDEmbeddingCache._metadata_version,
                model_fingerprint,
                mmproj_fingerprint,
                kind,
                digest,
            ]
        )
        return hashlib.sha256(payload.encode("utf-8")).hexdigest()

    def key_for_media(self, kind: Literal["image", "audio", "video"], media_bytes: bytes) -> str:
        return self._build_key(