import { AppSharedState } from '../../appState/state.models';
import { ActionMapSetModeChange } from '../../appState/state.models.actions';
/**
 * Handles the action to change the mode of a map set in the shared application state.
 * Updates the mode of the specified map set and returns the updated state.
 *
 * @param {AppSharedState} state - The current shared application state.
 * @param {ActionMapSetModeChange} action - The action containing the payload with the map set key and new mode.
 * @returns {AppSharedState} The updated application state with the modified map set mode.
 * @throws {Error} If the payload is missing or the map set with the specified key is not found.
 */
export declare const reduceHandlerMapSetModeChange: <T extends AppSharedState = AppSharedState>(state: T, action: ActionMapSetModeChange) => T;