export declare class DwgPreview {
    readonly code: DwgPreview.PreviewType;
    readonly rawHeader: Uint8Array;
    readonly rawImage: Uint8Array;
    constructor();
    constructor(code: DwgPreview.PreviewType, rawHeader: Uint8Array, rawImage: Uint8Array);
    toBytes(): Uint8Array;
}
export declare namespace DwgPreview {
    enum PreviewType {
        Unknown = 0,
        Bmp = 2,
        Wmf = 3,
        Png = 6
    }
}
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