Variable DRAFT_CHECKPOINT_SCHEMA`Const`

DRAFT_CHECKPOINT_SCHEMA: Readonly<
    {
        assistant: "gemma-assistant-v1";
        glm52Mtp: "glm52-native-mtp-v1";
        qwenMtp: "qwen-mtp-v1";
    },
> = ...

Attachment schemas of the draft methods' persisted row state. The strings are stored in checkpoints, so they never change with the code that reads them.