import Viewpoint from "@arcgis/core/Viewpoint";
import type Layer from "@arcgis/core/layers/Layer";
import type { TableExtension } from "@vertigis/arcgis-extensions/data/TableExtension";
import type { LayerExtension } from "@vertigis/arcgis-extensions/mapping/LayerExtension";
import type { SublayerExtension } from "@vertigis/arcgis-extensions/mapping/SublayerExtension";
import type { SublayerLike } from "@vertigis/arcgis-extensions/support/esri";
import type { LayerLike, LayerReference, Layers, Maps, ViewpointArg } from "@vertigis/viewer-spec/messaging/common";
import type { MapModel } from "../mapping/MapModel";
/**
 * Converts the input to an array of MapModel.
 *
 * @param value The input to convert.
 */
export declare function toMapArray(value: Maps): MapModel[];
/**
 * Converts the input to a layer extension.
 *
 * @param layer The input to convert.
 * @param map The map model(s) used to look up existing layer extensions if
 *   necessary.
 */
export declare function toLayerExtension(layer: LayerLike, map: MapModel | MapModel[]): LayerExtension | SublayerExtension | TableExtension | undefined;
/**
 * Converts the input to an array of layer extensions.
 *
 * @param layers The input to convert.
 * @param map The map model(s) used to look up existing layer extensions if
 *   necessary.
 */
export declare function toLayerExtensionArray(layers: Layers, map: MapModel | MapModel[]): (LayerExtension | SublayerExtension | TableExtension)[];
/**
 * Converts the input to a layer.
 *
 * @param layer The input to convert.
 * @param map The map model(s) used to look up existing layers if necessary.
 */
export declare function toLayer(layer: LayerLike, map: MapModel | MapModel[]): Layer | SublayerLike | undefined;
/**
 * Converts the input to an array of layers.
 *
 * @param layers The input to convert.
 * @param map The map model(s) used to look up existing layers if necessary.
 */
export declare function toLayerArray(layers: Layers, map: MapModel | MapModel[]): (Layer | SublayerLike)[];
/**
 * Converts the input to a Viewpoint.
 *
 * @param value The input to convert.
 */
export declare function toViewpoint(value: ViewpointArg): Viewpoint;
/**
 * Creates a layer reference from a layer extension.
 *
 * @param layer The layer to obtain a reference to.
 */
export declare function toLayerReference(layer: LayerExtension): LayerReference;