import type { Reader } from '../Reader';
import type { Writer } from '../Writer';
/**
 * FString codec used by Reader/Writer implementations.
 * Length prefix is int32 including null terminator:
 * - Positive length: 8-bit bytes (low byte of UCS-2), null-terminated.
 * - Negative length: UTF-16LE code units, null-terminated.
 */
export declare class FSting {
    static readonly NullByte = 0;
    static read(reader: Reader): string;
    static write(writer: Writer, value: string): void;
    private static readAnsi;
    private static readUtf16;
    private static isAnsi;
    private static encodeAnsi;
    private static decodeAnsi;
    private static encodeUtf16LE;
    private static decodeUtf16LE;
}