import { Connection, Transaction, VersionedTransaction } from '@solana/web3.js';
export declare function extractComputeUnitLimit(tx: VersionedTransaction | Transaction): number | null;
export declare function extractComputeUnitPrice(tx: VersionedTransaction | Transaction): number | bigint | null;
export declare const modifyComputeUnitLimitIx: (tx: VersionedTransaction | Transaction, newComputeUnitLimit: number) => boolean;
/**
 * Modify priority fee in transaction
 * @param tx
 * @param newPriorityFee
 * @returns {boolean} true if priority fee was modified
 **/
export declare const modifyComputeUnitPriceIx: (tx: VersionedTransaction | Transaction, newPriorityFee: number) => boolean;
/**
 * Estimate and modify priority fee in transaction
 * @param connection
 * @param tx
 * @param newPriorityFee
 * @returns {number} estimated priority fee
 *  **/
export declare const estimatePriorityFee: (connection: Connection, params: {
    tx?: VersionedTransaction | Transaction;
    accounts?: [];
}) => Promise<number>;