export function unitToRadius(unit: any, num: any): any;
export function kmToPixels(kilometers: any, latitude: any, zoomLevel: any): number;
export namespace defaultViewport {
    const bearing: number;
    const latitude: number;
    const longitude: number;
    const pitch: number;
    const zoom: number;
}
export const EARTH_CIRCUMFERENCE_KM: 40075.16;
export const MILES_PER_KM: 1.60934;
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