import { CffDrawCall } from "../draw-call";
import { DrawCallOptimizationPass } from "./general";
export declare class RRCurveToHHVVCurve extends DrawCallOptimizationPass<CffDrawCall> {
    protected doFlush(st: CffDrawCall): Generator<CffDrawCall, void, unknown>;
    private fetchIncomingArgOp;
    protected tryUpdateState(st: CffDrawCall, dc: CffDrawCall): CffDrawCall | null;
    protected tryInitState(dc: CffDrawCall): CffDrawCall | null;
}
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