/**
 * Band Letter Range
 */
export declare class BandLetterRange implements IterableIterator<string> {
    /**
     * Southern band letter
     */
    private south;
    /**
     * Northern band letter
     */
    private north;
    private letter;
    /**
     * Constructor
     *
     * @param south
     *            southern band letter
     * @param north
     *            northern band letter
     */
    constructor(south?: string, north?: string);
    /**
     * Get the southern band letter
     *
     * @return southern band letter
     */
    getSouth(): string;
    /**
     * Set the southern band letter
     *
     * @param south
     *            southern band letter
     */
    setSouth(south: string): void;
    /**
     * Get the northern band letter
     *
     * @return northern band letter
     */
    getNorth(): string;
    /**
     * Set the northern band letter
     *
     * @param north
     *            northern band letter
     */
    setNorth(north: string): void;
    /**
     * Get the southern latitude
     *
     * @return latitude
     */
    getSouthLatitude(): number;
    /**
     * Get the northern latitude
     *
     * @return latitude
     */
    getNorthLatitude(): number;
    next(): IteratorResult<string>;
    reset(): void;
    [Symbol.iterator](): IterableIterator<string>;
}
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