import Point from '../../geo/point';
import TwoTouchHandler from './two_touch';
export default class TouchPitchHandler extends TwoTouchHandler {
    valid: boolean | void;
    firstMove: number;
    lastPoints: [Point, Point];
    reset(): void;
    start(points: [Point, Point]): void;
    move(points: [Point, Point], center: Point, e: TouchEvent): {
        pitchDelta: number;
    } | undefined;
    gestureBeginsVertically(vectorA: Point, vectorB: Point, timeStamp: number): boolean | undefined;
}