import { Transform, TransformCallback } from 'node:stream';
import { BufferWithMeta, SymbolMetadata } from '../../types';
export interface ConfigTtf {
    fontName: string;
    metadata?: string;
    baselineOffset?: number;
    boxSize?: number;
}
export declare class TransformToTtf extends Transform {
    private readonly _fontName;
    private readonly _metadata?;
    private readonly _boxSize;
    private readonly _baselineOffset;
    private _glyphs;
    private _glyphsByCode;
    private _glyphsTotalSize;
    private static _TABLES;
    private static _VERSION;
    private static _CHECKSUM_ADJUSTMENT;
    constructor(config: ConfigTtf);
    _transform(chunk: BufferWithMeta<SymbolMetadata>, _encoding: BufferEncoding, callback: TransformCallback): void;
    _flush(callback: TransformCallback): void;
}