import type { ReadonlyVec, Vec } from "./api.js";
/**
 * Returns vector projection of `v` onto `dir`.
 *
 * https://en.wikipedia.org/wiki/Vector_projection
 *
 * @param v -
 * @param dir -
 */
export declare const project: (out: Vec, v: ReadonlyVec, dir: ReadonlyVec) => Vec;
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