import { type LMDBMessageChannel } from './message.js';
export declare class ReadTransaction {
    #private;
    protected channel: LMDBMessageChannel;
    protected open: boolean;
    constructor(channel: LMDBMessageChannel);
    close(): void;
    protected assertIsOpen(): void;
    get(key: Uint8Array): Promise<Uint8Array | undefined>;
    getIndex(key: Uint8Array): Promise<Uint8Array[]>;
    iterate(startKey: Uint8Array, endKey?: Uint8Array, reverse?: boolean, limit?: number): AsyncIterable<[Uint8Array, Uint8Array]>;
    iterateIndex(startKey: Uint8Array, endKey?: Uint8Array, reverse?: boolean, limit?: number): AsyncIterable<[Uint8Array, Uint8Array[]]>;
    countEntries(startKey: Uint8Array, endKey: Uint8Array, reverse: boolean): Promise<number>;
    countEntriesIndex(startKey: Uint8Array, endKey: Uint8Array, reverse: boolean): Promise<number>;
}
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