import type { ClientOptions, IndexedOutput, TxoQueryOptions } from "../types";
import { BaseClient } from "./BaseClient";
/**
 * Client for /1sat/txo/* routes.
 * Provides TXO (transaction output) lookup and search.
 *
 * Routes:
 * - GET /:outpoint - Get single TXO (outpoint pattern-matched)
 * - GET /:outpoint/spend - Get spend info
 * - POST /outpoints - Get multiple TXOs
 * - POST /spends - Get multiple spends
 * - GET /tx/:txid - Get all TXOs for a transaction
 * - GET /search?key=... - Search by key(s)
 */
export declare class TxoClient extends BaseClient {
    constructor(baseUrl: string, options?: ClientOptions);
    /**
     * Get a single TXO by outpoint
     */
    get(outpoint: string, opts?: TxoQueryOptions): Promise<IndexedOutput>;
    /**
     * Get multiple TXOs by outpoints
     */
    getBatch(outpoints: string[], opts?: TxoQueryOptions): Promise<(IndexedOutput | null)[]>;
    /**
     * Get spend info for an outpoint
     */
    getSpend(outpoint: string): Promise<string | null>;
    /**
     * Get spend info for multiple outpoints
     */
    getSpends(outpoints: string[]): Promise<(string | null)[]>;
    /**
     * Get all TXOs for a transaction
     */
    getByTxid(txid: string, opts?: TxoQueryOptions): Promise<IndexedOutput[]>;
    /**
     * Search TXOs by key(s)
     */
    search(keys: string | string[], opts?: TxoQueryOptions): Promise<IndexedOutput[]>;
}