import type { Action } from '../app-action-type.js';
import type { State } from '../app-state.js';
declare const settingsPanelActionTypes: readonly ["settingsOpen", "settingsClose", "settingsFieldMove", "settingsFieldSet", "settingsFilterSet"];
type SettingsPanelAction = Extract<Action, {
    type: (typeof settingsPanelActionTypes)[number];
}>;
export declare function isSettingsPanelAction(action: Action): action is SettingsPanelAction;
/** Reduces opening, closing, focus, and filtering for the settings panel. */
export declare function reduceSettingsPanel(state: State, action: SettingsPanelAction): State;
export {};
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