import * as React from "react";
import type { Coord } from "@khanacademy/perseus";
type TangentCoords = [Coord, Coord];
interface StartCoordsTangentProps {
    startCoords: TangentCoords;
    onChange: (startCoords: TangentCoords) => void;
    pointLabels: ReadonlyArray<string>;
    onChangePointLabels: (pointLabels: ReadonlyArray<string>) => void;
}
declare const StartCoordsTangent: (props: StartCoordsTangentProps) => React.JSX.Element;
export default StartCoordsTangent;
