/**
 * Gmail module — search, read, send, reply, forward, labels, drafts.
 *
 * All functions take an OAuth2Client as first argument.
 * Use `getAuth('gmail', 'account@email.com')` from the auth module.
 */
import type { OAuth2Client } from 'google-auth-library';
import type { GmailMessage, GmailThread, GmailDraft, ListResult, WriteResult, SearchOptions, SendOptions, ReplyOptions, ForwardOptions, BatchLabelOptions } from './types.js';
export type { GmailMessage, GmailThread, GmailDraft, ListResult, WriteResult, SearchOptions, SendOptions, ReplyOptions, ForwardOptions, BatchLabelOptions, };
export { getMessageRaw, getThreadMbox } from './raw.js';
export { sanitizeEmailHtml } from './formats.js';
export { markdownToHtml } from './markdown.js';
/**
 * Get the authenticated user's email address.
 */
export declare function getProfile(auth: OAuth2Client): Promise<string>;
/**
 * Search messages using Gmail query syntax.
 *
 * @example
 * ```ts
 * const results = await search(auth, { query: 'from:client is:unread' });
 * ```
 */
export declare function search(auth: OAuth2Client, opts: SearchOptions): Promise<ListResult<GmailMessage>>;
/**
 * Get a single message by ID.
 */
export declare function getMessage(auth: OAuth2Client, messageId: string): Promise<GmailMessage>;
/**
 * Get a thread (conversation) by ID.
 */
export declare function getThread(auth: OAuth2Client, threadId: string): Promise<GmailThread>;
/**
 * Send an email.
 *
 * ⚠️ DESTRUCTIVE — requires safety confirmation.
 */
export declare function send(auth: OAuth2Client, opts: SendOptions): Promise<WriteResult>;
/**
 * Reply to a thread.
 *
 * ⚠️ DESTRUCTIVE — requires safety confirmation.
 */
export declare function reply(auth: OAuth2Client, opts: ReplyOptions): Promise<WriteResult>;
/**
 * Forward a message to new recipients.
 *
 * Fetches the original message, quotes its body, and re-attaches attachments.
 * By default creates a **draft** (WRITE, no safety gate). Use `sendNow: true`
 * to send immediately (⚠️ DESTRUCTIVE — requires safety confirmation).
 *
 * Supports keeping in thread, filtering attachments by include/exclude
 * lists, and markdown/html bodies.
 */
export declare function forward(auth: OAuth2Client, opts: ForwardOptions): Promise<WriteResult>;
/**
 * Batch modify labels on multiple messages.
 *
 * This is a WRITE operation (reversible), no safety gate.
 */
export declare function batchModifyLabels(auth: OAuth2Client, opts: BatchLabelOptions): Promise<WriteResult>;
/**
 * List all labels for the account.
 */
export declare function listLabels(auth: OAuth2Client): Promise<Array<{
    id: string;
    name: string;
    type: string;
}>>;
/**
 * Create a draft.
 *
 * WRITE operation (reversible), no safety gate.
 *
 * @param opts.threadId - Optional thread ID to place the draft in an existing thread
 * @param opts.extraHeaders - Optional extra MIME headers (e.g. In-Reply-To, References)
 */
export declare function createDraft(auth: OAuth2Client, opts: SendOptions & {
    threadId?: string;
    extraHeaders?: Record<string, string>;
}): Promise<GmailDraft>;
/**
 * Send an existing draft.
 *
 * ⚠️ DESTRUCTIVE — requires safety confirmation.
 */
export declare function sendDraft(auth: OAuth2Client, draftId: string): Promise<WriteResult>;
/**
 * List drafts.
 */
export declare function listDrafts(auth: OAuth2Client, maxResults?: number, pageToken?: string): Promise<ListResult<GmailDraft>>;
/**
 * Download an attachment's content as a Buffer.
 */
export declare function getAttachmentContent(auth: OAuth2Client, messageId: string, attachmentId: string): Promise<Buffer>;
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