/**
 * Google Tasks operations — agent-friendly wrappers.
 *
 * All functions take an OAuth2Client and return typed results.
 * Destructive operations (delete, clear) are gated by the safety system.
 */
import type { OAuth2Client } from 'google-auth-library';
import type { TaskList, Task, TaskOptions, ListTasksOptions, ListResult, WriteResult } from './types.js';
export type { TaskList, Task, TaskOptions, ListTasksOptions, ListResult, WriteResult, } from './types.js';
/**
 * List all task lists.
 */
export declare function listTaskLists(auth: OAuth2Client): Promise<TaskList[]>;
/**
 * Create a new task list.
 */
export declare function createTaskList(auth: OAuth2Client, title: string): Promise<WriteResult>;
/**
 * Delete a task list.
 *
 * ⚠️ DESTRUCTIVE — requires safety confirmation.
 */
export declare function deleteTaskList(auth: OAuth2Client, taskListId: string): Promise<WriteResult>;
/**
 * List tasks in a task list.
 */
export declare function listTasks(auth: OAuth2Client, taskListId: string, opts?: ListTasksOptions): Promise<ListResult<Task>>;
/**
 * Get a single task by ID.
 */
export declare function getTask(auth: OAuth2Client, taskListId: string, taskId: string): Promise<Task>;
/**
 * Create a new task.
 */
export declare function createTask(auth: OAuth2Client, taskListId: string, opts: TaskOptions): Promise<WriteResult>;
/**
 * Update a task. Uses PATCH semantics — only provided fields are changed.
 */
export declare function updateTask(auth: OAuth2Client, taskListId: string, taskId: string, opts: Partial<TaskOptions>): Promise<WriteResult>;
/**
 * Complete a task (shorthand for update with status='completed').
 */
export declare function completeTask(auth: OAuth2Client, taskListId: string, taskId: string): Promise<WriteResult>;
/**
 * Move a task (reorder or reparent).
 */
export declare function moveTask(auth: OAuth2Client, taskListId: string, taskId: string, opts?: {
    parent?: string;
    previous?: string;
}): Promise<WriteResult>;
/**
 * Delete a task.
 *
 * ⚠️ DESTRUCTIVE — requires safety confirmation.
 */
export declare function deleteTask(auth: OAuth2Client, taskListId: string, taskId: string): Promise<WriteResult>;
/**
 * Clear all completed tasks from a task list.
 *
 * ⚠️ DESTRUCTIVE — requires safety confirmation.
 */
export declare function clearCompleted(auth: OAuth2Client, taskListId: string): Promise<WriteResult>;
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