import { Beef } from '@bsv/sdk';
/**
 * Return a minimal BEEF when the source contains data outside the requested
 * transaction dependency closure. Return undefined when no pruning is needed.
 *
 * This form lets forwarding clients retain the caller's original bytes in the
 * common no-op case instead of rebuilding and reserializing an equivalent BEEF.
 */
export declare function pruneBeefForTxids(source: Beef, txids: string[]): Beef | undefined;
/**
 * Return an independent minimal BEEF needed to prove the requested transactions.
 *
 * Transactions remain in source order and are sorted by Beef when serialized.
 * The source is indexed and walked once, using an explicit stack so a hostile
 * dependency depth cannot exhaust the JavaScript call stack.
 */
export declare function beefForTxids(source: Beef, txids: string[]): Beef;
//# sourceMappingURL=beefForTxids.d.ts.map