import type { ReadonlyVec } from "@thi.ng/vectors";
import type { Color, ColorMatrix, ReadonlyColor } from "../api.js";
/** @internal */
export declare const __mulV33: (out: Color | null, mat: ReadonlyVec, src: ReadonlyColor, clampOut?: boolean) => import("@thi.ng/vectors").Vec<number>;
/** @internal */
export declare const __mulV45: (out: Color | null, mat: ColorMatrix, src: ReadonlyColor, clampOut?: boolean) => import("@thi.ng/vectors").Vec<number>;
/** @internal */
export declare const __mulM45: (a: ColorMatrix, b: ColorMatrix) => ColorMatrix;
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