/**
 * Lazy selection utilities for DataArray
 * Handles selection operations on lazy-loaded arrays without materializing the entire dataset
 */
import { Selection, DimensionName, Coordinates, SelectionOptions, LazyIndexRange, Attributes } from '../types.js';
/**
 * Map a current index to the original index in the source dataset.
 * If this DataArray has an originalIndexMapping (from a previous selection),
 * use it to look up the original index. Otherwise, the current index IS the original.
 */
export declare function mapIndexToOriginal(originalIndexMapping: {
    [dimension: string]: number[];
} | undefined, dim: DimensionName, currentIndex: number): number;
/**
 * Parameters for performing lazy selection
 */
export interface LazySelectionParams {
    selection: Selection;
    options?: SelectionOptions;
    dims: DimensionName[];
    shape: number[];
    coords: Coordinates;
    attrs: Attributes;
    name?: string;
    originalIndexMapping?: {
        [dimension: string]: number[];
    };
    lazyLoader: (ranges: Record<string, LazyIndexRange>) => Promise<any>;
}
/**
 * Result of lazy selection operation
 */
export interface LazySelectionResult {
    virtualShape: number[];
    lazyLoader: (ranges: Record<string, LazyIndexRange>) => Promise<any>;
    dims: DimensionName[];
    coords: Coordinates;
    attrs: Attributes;
    name?: string;
    originalIndexMapping: {
        [dimension: string]: number[];
    };
}
/**
 * Perform lazy selection on a DataArray
 * Returns metadata for creating a new lazy DataArray without materializing data
 */
export declare function performLazySelection(params: LazySelectionParams): LazySelectionResult;
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