import type { RunnableConfig } from '@langchain/core/runnables';
import { BaseCheckpointSaver, type Checkpoint, type CheckpointListOptions, type CheckpointMetadata, type CheckpointTuple, type PendingWrite, type SerializerProtocol } from '@langchain/langgraph-checkpoint';
import { type Database as DatabaseType, type Statement } from 'better-sqlite3';
interface Migration {
    version: number;
    name: string;
    up: (db: DatabaseType) => void;
}
export declare class SqliteSaver extends BaseCheckpointSaver {
    db: DatabaseType;
    protected isSetup: boolean;
    protected withoutCheckpoint: Statement;
    protected withCheckpoint: Statement;
    protected putCheckpointStmt: Statement;
    protected putWritesStmt: Statement;
    protected deleteCheckpointsStmt: Statement;
    protected putMessageStmt: Statement;
    protected getMessageStmt: Statement;
    protected deleteWritesStmt: Statement;
    protected deleteMessagesStmt: Statement;
    constructor(db: DatabaseType, serde?: SerializerProtocol);
    static fromConnString(connStringOrLocalPath: string): SqliteSaver;
    static fromDatabase(db: DatabaseType, serde?: SerializerProtocol): SqliteSaver;
    close(): void;
    protected createSchemaMigrationsTable(): void;
    protected getAppliedMigrations(): number[];
    protected recordMigration(migration: Migration): void;
    protected loadMigrations(): Migration[];
    protected runMigrations(): void;
    protected setup(): void;
    getTuple(config: RunnableConfig): Promise<CheckpointTuple | undefined>;
    list(config: RunnableConfig, options?: CheckpointListOptions): AsyncGenerator<CheckpointTuple>;
    put(config: RunnableConfig, _checkpoint: Checkpoint, metadata: CheckpointMetadata): Promise<RunnableConfig>;
    putWrites(config: RunnableConfig, writes: PendingWrite[], taskId: string): Promise<void>;
    deleteThread(threadId: string): Promise<void>;
    protected migratePendingSends(checkpoint: Checkpoint, threadId: string, parentCheckpointId: string): Promise<void>;
}
export {};
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