import type { StyledSegment, ThinkingLevel, TodoAction, TodoDetails, TodoLiveStateEvent, TodoStatus, TodoTask, TodoTaskLinePart, TodoTaskRow } from "../types.js";
export declare function isTodoAction(value: unknown): value is TodoAction;
export declare function isTodoStatus(value: unknown): value is TodoStatus;
export declare function isTodoThinkingLevel(value: unknown): value is ThinkingLevel;
export declare function isTodoTask(value: unknown): value is TodoTask;
export declare function isTodoDetails(value: unknown): value is TodoDetails;
export declare function isTodoLiveStateEvent(value: unknown): value is TodoLiveStateEvent;
export declare function todoStatusIcon(status: TodoStatus): string;
export declare function visibleTodoTasks(details: TodoDetails, showDeleted?: boolean): TodoTask[];
export declare function hasOpenTodoTasks(details: TodoDetails): boolean;
export declare function visibleTodoTaskRows(details: TodoDetails, showDeleted?: boolean): TodoTaskRow[];
export declare function todoTaskLineParts(task: TodoTask, options?: {
    depth?: number;
}): TodoTaskLinePart[];
export declare function formatTodoTaskLine(task: TodoTask, options?: {
    depth?: number;
}): string;
export declare function todoTaskLineSegments(task: TodoTask, mutedColor: string, options?: {
    depth?: number;
    thinkingColor?: (level: ThinkingLevel) => string;
    statusColor?: (status: TodoStatus) => string;
}): StyledSegment[];
export declare function shiftSegmentsToSlice(segments: readonly StyledSegment[], start: number, length: number): StyledSegment[];
export declare function formatTodoPanelStats(tasks: readonly TodoTask[]): string;