import type { BinaryView, Frag } from "@ot-builder/bin-util";
import type * as ImpLib from "@ot-builder/common-impl";
import type { Cvt } from "@ot-builder/ot-glyphs";
import { OtVar } from "@ot-builder/variance";
export declare const CvarIo: {
    read(view: BinaryView, cvt: Cvt.Table, designSpace: OtVar.DesignSpace): void;
    write(frag: Frag, cvt: Cvt.Table, designSpace: OtVar.DesignSpace, acEmpty?: ImpLib.Access<boolean>): void;
};
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