/**
 * @typedef {Ed25519Curve<Point4<bigint>>} ExtendedCurve
 */
/**
 * @implements {ExtendedCurve}
 */
export class ExtendedCurveImpl extends CurveWithOpsImpl<any, Curve<any>> implements ExtendedCurve {
    constructor();
    /**
     * @param {Point4<bigint>} point
     * @returns {Point2<bigint>}
     */
    toAffine(point: Point4<bigint>): Point2<bigint>;
    /**
     * @param {Point2<bigint>} point
     * @returns {Point4<bigint>}
     */
    fromAffine(point: Point2<bigint>): Point4<bigint>;
}
export type ExtendedCurve = Ed25519Curve<Point4<bigint>>;
import type { Curve } from "../../internal.js";
import { CurveWithOpsImpl } from "../common/index.js";
import type { Point4 } from "../../internal.js";
import type { Point2 } from "../../index.js";
import type { Ed25519Curve } from "../../internal.js";
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