declare const isF: (f: unknown) => f is Function;
declare const vec3: (x?: number, y?: number, z?: number, out?: any[] | Float32Array<ArrayBuffer>) => Vec3;
type Vec3 = [x: number, y: number, z: number];
declare const addVec3: (a: Vec3, b: Vec3, out?: Vec3) => Vec3;
declare const subVec3: (a: Vec3, b: Vec3, out?: Vec3) => Vec3;
declare const cpVec3: (a: Vec3, out?: Vec3) => Vec3;

export { type Vec3, addVec3, cpVec3, isF, subVec3, vec3 };