/// <reference types="bun-types" />
export declare const U_SHAPE_DIRECTION_OUTPUT_BIDI: number;
export declare const U_SHAPE_LETTERS_SHAPE = 8;
export declare const U_SHAPE_LETTERS_MASK = 24;
export declare const U_SHAPE_TEXT_DIRECTION_LOGICAL = 0;
export declare const U_SHAPE_TEXT_DIRECTION_MASK = 4;
export declare const DEFAULT_OPTIONS: number;
export declare const DEFAULT_OPTIONS_WITHOUT_BIDI_SHAPING: number;
export default class TextShaper {
    #private;
    instance: WebAssembly.Instance;
    wasmMemory?: Uint8Array;
    tmpString: string;
    constructor();
    shapeString(str: string, options?: number): string;
    isRTL(unicode: number): boolean;
    isCJK(unicode: number): boolean;
}