/// <reference types="node" />
import { ECPoint } from './common';
declare function sizeOfArray<T>(values: readonly T[], sizeOf: (value: T) => number): number;
declare function sizeOfObject<T>(obj: T, sizeOf: (key: keyof T, value: T[keyof T]) => number): number;
export declare const IOHelper: {
    sizeOfUInt8: number;
    sizeOfBoolean: number;
    sizeOfUInt16LE: number;
    sizeOfUInt32LE: number;
    sizeOfUInt64LE: number;
    sizeOfVarBytesLE: (value: Buffer) => number;
    sizeOfVarString: (value: string) => number;
    sizeOfFixedString: (length: number) => number;
    sizeOfArray: typeof sizeOfArray;
    sizeOfObject: typeof sizeOfObject;
    sizeOfUInt160: number;
    sizeOfUInt256: number;
    sizeOfECPoint: (ecPoint: ECPoint) => number;
    sizeOfFixed8: number;
};
export {};