import { SqliteSaver } from '@langchain/langgraph-checkpoint-sqlite';
/**
 * Creates a SQLite-backed checkpoint saver for LangGraph state persistence.
 * Ensures the parent directory exists for file-based paths.
 *
 * @param dbPath - Path to the SQLite database file (e.g., ':memory:' or a file path)
 * @returns A SqliteSaver instance ready for use as a LangGraph checkpointer
 */
export declare function createCheckpointer(dbPath: string): SqliteSaver;
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