import { BufferGeometry, Object3D } from 'three';
import { TextJustifiyParams } from './TextJustify';
import { TextLineHeightParams } from './TextLineHeight';
import { TextType } from './TextType';
interface TextMergeAllLettersOptions extends TextJustifiyParams, TextLineHeightParams {
    geometries: Array<BufferGeometry | undefined>;
    textType: TextType;
    splitPerLetter: boolean;
    keepEmptyGeometries: boolean;
    text: string;
}
export declare function textMergeLetters(params: TextMergeAllLettersOptions): Object3D<import("three").Object3DEventMap>[] | undefined;
export {};