/**
 * Bands a VP-built payout's implicit fee before the depositor pre-signs it.
 * Ceiling (ours, #2105) blocks a VP deflating outputs and burning the
 * difference as miner fee; floor (vault-wasm `computePayoutFeeFloor`) rejects
 * a fee no legitimate VP model produces and that may not relay at redemption.
 *
 * Caller (`buildPayoutPsbt`) must have run `assertPayoutFeeBandDomain` first,
 * and `implicitFeeSats` must be `inputs − outputs` over verified prevouts.
 * Band non-emptiness is proven by the corner sweep in the tests, not by a
 * closed-form argument — slack is not monotone at small rosters.
 *
 * @module primitives/psbt/assertPayoutFeeBand
 */
/** Shape/rate inputs the fee band is evaluated over. */
export interface PayoutFeeBandParams {
    /** Vault core (tx-graph) version — selects the floor's pinned model set. */
    vaultCoreVersion: number;
    /** Vault keeper count (N). */
    numVaultKeepers: number;
    /** Universal challenger count (M). */
    numUniversalChallengers: number;
    /** Security council size from the locked offchain params version. */
    councilSize: number;
    /** Version-locked tx-graph fee rate (sat/vB); anchors both band ends. */
    protocolFeeRate: bigint;
}
/**
 * Validate the fee-band inputs lie in the accepted domain. Bounds differ in
 * KIND per role — see each constant.
 *
 * @throws If the rate, a participant count, or `councilSize` is out of range
 */
export declare function assertPayoutFeeBandDomain(params: PayoutFeeBandParams): void;
/**
 * Assert `floor <= implicitFeeSats <= ceiling`. `out1Len` is `undefined` for
 * the 2-output (no-commission) layouts.
 *
 * @throws If the fee is below the floor or above the ceiling
 */
export declare function assertPayoutFeeInBand(params: PayoutFeeBandParams, measured: {
    implicitFeeSats: number;
    out0Len: number;
    out1Len: number | undefined;
}): Promise<void>;
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