import type { LayoutNode, TerminalLayoutState, TerminalTabLayout, TerminalWorkspaceLayout } from './types.js';
export declare function isTerminalLayoutState(value: unknown): value is TerminalLayoutState;
export declare function normalizeTerminalLayoutState(value: unknown): TerminalLayoutState | null;
export declare function isTerminalWorkspaceLayout(value: unknown): value is TerminalWorkspaceLayout;
export declare function isTerminalTabLayout(value: unknown): value is TerminalTabLayout;
export declare function isLayoutNode(value: unknown): value is LayoutNode;
