import { Logger } from '@llamaindex/env';
import { StoredValue } from '../../../schema/dist/index.js';

declare abstract class BaseKVStore {
    abstract put(key: string, val: StoredValue, collection?: string): Promise<void>;
    abstract get(key: string, collection?: string): Promise<StoredValue>;
    abstract getAll(collection?: string): Promise<Record<string, StoredValue>>;
    abstract delete(key: string, collection?: string): Promise<boolean>;
}
declare abstract class BaseInMemoryKVStore extends BaseKVStore {
    abstract persist(persistPath: string): void;
    static fromPersistPath(persistPath: string): BaseInMemoryKVStore;
}
type DataType = Record<string, Record<string, StoredValue>>;
declare class SimpleKVStore extends BaseKVStore {
    private data;
    private persistPath;
    constructor(data?: DataType);
    put(key: string, val: StoredValue, collection?: string): Promise<void>;
    get(key: string, collection?: string): Promise<StoredValue>;
    getAll(collection?: string): Promise<Record<string, StoredValue>>;
    delete(key: string, collection?: string): Promise<boolean>;
    persist(persistPath: string): Promise<void>;
    static fromPersistPath(persistPath: string, options?: {
        logger?: Logger;
    }): Promise<SimpleKVStore>;
    toDict(): DataType;
    static fromDict(saveDict: DataType): SimpleKVStore;
}

export { BaseInMemoryKVStore, BaseKVStore, SimpleKVStore };
export type { DataType };