import type { RuntimeTaskTurnCheckpoint } from "../core/api-contract.js";
export declare function captureTaskTurnCheckpoint(input: {
    cwd: string;
    taskId: string;
    turn: number;
}): Promise<RuntimeTaskTurnCheckpoint>;
export declare function deleteTaskTurnCheckpointRef(input: {
    cwd: string;
    ref: string;
}): Promise<void>;
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