import { AppSharedState } from '../state.models';
import { ActionGeometryDrawingUpdate } from '../state.models.actions';
/**
 * Core reducer handler for GEOMETRY_DRAWING_UPDATE.
 *
 * Finds the RenderingLayer identified by `payload.layerKey` and merges
 * `payload.patch` into its `geometryDrawing` field.  All other layers and
 * all other state properties are left untouched.
 *
 * Registered as a core reducer in `state.reducer.ts` so any application
 * using `ptr-fe-core` automatically supports drawing state without having
 * to add an app-specific reducer entry.
 */
export declare const reduceHandlerGeometryDrawingUpdate: <T extends AppSharedState>(state: T, action: ActionGeometryDrawingUpdate) => T;