import { AssertPayoutNoPayoutConnectorParams, Network } from '@babylonlabs-io/babylon-tbv-rust-wasm';
/**
 * Parameters for building a NoPayout PSBT
 */
export interface NoPayoutParams {
    /** NoPayout transaction hex (unsigned) from VP */
    noPayoutTxHex: string;
    /** Challenger's x-only public key (hex encoded) */
    challengerPubkey: string;
    /** Prevouts for all inputs [{script_pubkey, value}] from VP */
    prevouts: Array<{
        script_pubkey: string;
        value: number;
    }>;
    /** Parameters for the Assert Payout/NoPayout connector */
    connectorParams: AssertPayoutNoPayoutConnectorParams;
}
/**
 * Build unsigned NoPayout PSBT.
 *
 * The NoPayout transaction is specific to each challenger.
 * Input 0 is the one the depositor signs using the NoPayout taproot script path.
 *
 * @param params - NoPayout parameters
 * @returns Unsigned PSBT hex ready for signing
 */
export declare function buildNoPayoutPsbt(params: NoPayoutParams): Promise<string>;
/**
 * Validate that a NoPayout transaction pays to the challenger via the
 * protocol-defined output structure: a single BIP-86 P2TR output derived from
 * the challenger's x-only pubkey.
 *
 * Mirrors the per-role payout output validation now inlined in
 * `buildPayoutPsbt` for the NoPayout path, where the sink is fixed by the
 * protocol rather than read from on-chain registration
 * (see `crates/vault/src/transactions/nopayout.rs::NoPayoutTx::new`).
 *
 * @param noPayoutTxHex - Raw NoPayout transaction hex
 * @param challengerPubkey - Challenger's x-only public key (hex)
 * @param network - Bitcoin network used to derive the P2TR scriptPubKey
 * @throws If the transaction does not have exactly one output
 * @throws If the single output's scriptPubKey does not equal the BIP-86 P2TR
 *         scriptPubKey for the challenger
 */
export declare function assertNoPayoutOutputMatchesChallenger(noPayoutTxHex: string, challengerPubkey: string, network: Network): void;
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