import type { STACCollection, STACItem } from '../api';
/**
 * Infers the temporal step (time resolution) from STAC collection metadata and items.
 * Attempts multiple strategies:
 * 1. Look for 'temporal-resolution' in collection properties
 * 2. Calculate from actual item timestamps
 * 3. Fall back to PT1H if unable to determine
 *
 * @param collection - STAC collection with metadata and items
 * @returns ISO 8601 duration string (e.g., 'PT5M', 'PT1H', 'P1D')
 */
export declare const inferTemporalStep: (collection: STACCollection | undefined, items?: STACItem[]) => string;
/**
 * Converts milliseconds to ISO 8601 duration string
 * @param ms - Duration in milliseconds
 * @returns ISO 8601 duration string
 */
export declare const millisecondsToISO8601Duration: (ms: number) => string;