/// <reference types="node" />
import { AccountInfo, PublicKey } from '@solana/web3.js';
import { Layout } from 'buffer-layout';
export declare type Parser<T> = (pubkey: PublicKey, info: AccountInfo<Buffer>) => {
    pubkey: PublicKey;
    info: AccountInfo<Buffer>;
    data: T;
} | undefined;
export declare const u256: (property?: string) => Layout<bigint>;
export declare const u512: (property?: string) => Layout<bigint>;