/**
 * @param {number} code Unit code.
 * @return {Units} Units.
 */
export function fromCode(code: number): Units;
/**
 * @typedef {Object<string, number|undefined>} MetersPerUnitLookup
 * @property {number} radians Radians
 * @property {number} degrees Degrees
 * @property {number} ft  Feet
 * @property {number} m Meters
 * @property {number} us-ft US feet
 */
/**
 * Meters per unit lookup table.
 * @const
 * @type {MetersPerUnitLookup}
 * @api
 */
export const METERS_PER_UNIT: MetersPerUnitLookup;
/**
 * Projection units.
 */
export type Units = "radians" | "degrees" | "ft" | "m" | "pixels" | "tile-pixels" | "us-ft";
export type MetersPerUnitLookup = {
    [x: string]: number | undefined;
};
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