import type { GraphClientConfig } from "../lib/graph-client.js";
export interface ReplyArgs {
    messageId: string;
    body: string;
    replyAll?: boolean;
    cc?: string[];
    bcc?: string[];
    attachments?: string[];
}
export interface ReplyResult {
    conversationId: string | null;
    to: string[];
    replyAll: boolean;
    attachments: string[];
}
/**
 * Reply to a message in-thread via Microsoft Graph. Threading is native: the
 * createReply/createReplyAll draft carries the original conversationId. The
 * body is passed as `comment` (Graph prepends it above the quoted original).
 * cc/bcc are added by PATCHing the draft; attachments are added per-file, then
 * the draft is sent. Attachment paths are validated BEFORE any Graph write so a
 * bad path leaves no orphan draft; a file at or under the inline limit is added
 * as one base64 fileAttachment POST, a larger file (up to the 25 MB account cap)
 * streams through a Graph upload session.
 */
export declare function runMailReply(config: GraphClientConfig, args: ReplyArgs): Promise<ReplyResult>;
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