/** Historical default retained only to identify untouched wallet baskets. */
export declare const LEGACY_MANAGED_CHANGE_MINIMUM_SATOSHIS = 32;
/**
 * Default liquidity policy for wallet-managed change.
 *
 * The preferred minimum is deliberately much larger than the dust threshold.
 * Dust answers "can this output ever be spent economically?"; this value
 * answers "is this output useful as an independently selectable liquidity
 * unit at contemporary fee rates?".
 */
export declare const DEFAULT_MANAGED_CHANGE_TARGET_UTXOS = 144;
export declare const DEFAULT_MANAGED_CHANGE_MINIMUM_SATOSHIS = 5000;
export declare const DEFAULT_MANAGED_CHANGE_MAX_OUTPUTS_PER_ACTION = 8;
export declare const DEFAULT_MANAGED_CHANGE_MIGRATION_INPUTS_PER_ACTION = 4;
export declare const DEFAULT_MANAGED_CHANGE_PENDING_COMPARISON_INPUTS = 16;
export interface ManagedChangePolicy {
    /** Maximum change outputs created by one action while growing the pool; -1 is unlimited. */
    maxOutputsPerAction: number;
    /** Maximum undersized, fee-positive inputs consumed only to improve the pool; -1 is unlimited. */
    migrationInputsPerAction: number;
    /**
     * A completed-only plan above this input count is compared with pending
     * alternatives using exact BEEF bytes. This is a comparison trigger, never
     * a funding limit. -1 disables pending comparison until settled funding is
     * actually insufficient.
     */
    pendingComparisonInputs: number;
}
export type ManagedChangePolicyOptions = Partial<ManagedChangePolicy>;
export interface ManagedChangeBasketDefaults {
    name: string;
    numberOfDesiredUTXOs: number;
    minimumDesiredUTXOValue: number;
}
/** True only for the exact historical default that is safe to auto-upgrade. */
export declare function isLegacyManagedChangeBasketDefault(basket: ManagedChangeBasketDefaults): boolean;
/**
 * Normalize a legacy default while retaining every other field and every
 * operator-selected non-default value. Used by migrations, sync, and restore.
 */
export declare function upgradeLegacyManagedChangeBasketDefault<T extends ManagedChangeBasketDefaults>(basket: T): T;
export declare function defaultManagedChangePolicy(): ManagedChangePolicy;
export declare function validateManagedChangePolicy(options?: ManagedChangePolicyOptions): ManagedChangePolicy;
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