import { Dataset } from "@dclimate/jaxray";
/**
 * Selects data points within a circular region defined by center coordinates and radius
 *
 * @param dataset - The jaxray Dataset to filter
 * @param centerLat - Latitude of circle center in decimal degrees
 * @param centerLon - Longitude of circle center in decimal degrees
 * @param radiusKm - Radius of the circle in kilometers
 * @param options - Configuration options
 * @param options.latitudeKey - Name of latitude coordinate (default: "latitude")
 * @param options.longitudeKey - Name of longitude coordinate (default: "longitude")
 * @returns A new Dataset with data within the specified circular region
 * @throws InvalidSelectionError if latitude or longitude coordinates not found
 *
 * @example
 * ```typescript
 * const data = await Dataset.open_zarr(store);
 * // Get all data within 100km of New York City
 * const result = await circle(data, 40.7128, -74.0060, 100);
 * ```
 */
export declare function circle(dataset: Dataset, centerLat: number, centerLon: number, radiusKm: number, options?: {
    latitudeKey?: string;
    longitudeKey?: string;
}): Promise<Dataset>;
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