/**
 * Fleet & leader sub-reducer for the TUI.
 *
 * Handles all fleetSpawn / fleetToolStart / fleetToolEnd / fleetStart /
 * fleetDelta / fleetMessage / fleetTool / fleetUsage / fleetDone /
 * fleetBudgetWarning / fleetBudgetExtended / fleetCtxPct / fleetCost /
 * fleetConcurrency / fleetSeed / fleetBatch / leaderIterStart /
 * leaderIterEnd / leaderToolStart / leaderToolEnd / leaderCtxPct /
 * setFleetChat actions.
 *
 * Returns the new state when the action is fleet/leader-related, or
 * null when the action should fall through to the main reducer.
 */
import type { Action } from '../app-action-type.js';
import type { State } from '../app-state.js';
export declare function reduceFleetState(state: State, action: Action): State | null;
//# sourceMappingURL=fleet.d.ts.map