import { ChallengeAssertConnectorParams } from '@babylonlabs-io/babylon-tbv-rust-wasm';
/**
 * Parameters for building a ChallengeAssert PSBT
 */
export interface ChallengeAssertParams {
    /** ChallengeAssert transaction hex (unsigned) */
    challengeAssertTxHex: string;
    /** Authoritative Assert transaction hex — every input must spend an Assert output */
    assertTxHex: string;
    /** Per-input connector params (one per input/segment, determines the taproot script) */
    connectorParamsPerInput: ChallengeAssertConnectorParams[];
}
/**
 * Build unsigned ChallengeAssert PSBT.
 *
 * Each input has its own taproot script derived from its connector params; the
 * number of connector params must match the transaction's input count. The
 * depositor signs all inputs. Every prevout is derived from the authoritative
 * Assert transaction, never trusted from external input.
 *
 * @param params - ChallengeAssert parameters
 * @returns Unsigned PSBT hex ready for signing
 *
 * @throws If the number of connector params does not match the number of inputs
 * @throws If any input does not reference assertTxHex
 * @throws If any referenced Assert output is missing
 * @throws If two inputs reference the same Assert output index
 */
export declare function buildChallengeAssertPsbt(params: ChallengeAssertParams): Promise<string>;
//# sourceMappingURL=challengeAssert.d.ts.map