import type { Database } from "better-sqlite3";
import type { ConvReducerState } from "../conversation-reducer";
export interface Checkpoint {
    messageIndex: number;
    byteOffset: number;
    lineNumber: number;
    state: ConvReducerState;
}
export declare class CheckpointsRepo {
    private db;
    constructor(db: Database);
    replaceAll(sourcePath: string, checkpoints: Checkpoint[]): void;
    append(sourcePath: string, checkpoints: Checkpoint[]): void;
    floor(sourcePath: string, messageIndex: number): Checkpoint | null;
    last(sourcePath: string): Checkpoint | null;
    count(sourcePath: string): number;
    remove(sourcePath: string): void;
}
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