/**
 * MINIMAL maps to the REST `metadata` format (headers + snippet); FULL_CONTENT
 * (the default) maps to `full`, which carries the MIME tree projected to
 * plaintext bodies and attachment ids.
 */
export declare const get_thread: import("../../../lib/operation.js").Operation<import("@googleapis/gmail").gmail_v1.Gmail, import("zod").ZodObject<{
    threadId: import("zod").ZodString;
    messageFormat: import("zod").ZodOptional<import("zod").ZodEnum<{
        FULL_CONTENT: "FULL_CONTENT";
        MESSAGE_FORMAT_UNSPECIFIED: "MESSAGE_FORMAT_UNSPECIFIED";
        MINIMAL: "MINIMAL";
    }>>;
}, import("zod/v4/core").$strict>, import("zod").ZodObject<{
    id: import("zod").ZodString;
    snippet: import("zod").ZodOptional<import("zod").ZodString>;
    messages: import("zod").ZodArray<import("zod").ZodObject<{
        id: import("zod").ZodString;
        snippet: import("zod").ZodOptional<import("zod").ZodString>;
        subject: import("zod").ZodOptional<import("zod").ZodString>;
        sender: import("zod").ZodOptional<import("zod").ZodObject<{
            name: import("zod").ZodOptional<import("zod").ZodString>;
            address: import("zod").ZodString;
        }, import("zod/v4/core").$strip>>;
        toRecipients: import("zod").ZodOptional<import("zod").ZodArray<import("zod").ZodObject<{
            name: import("zod").ZodOptional<import("zod").ZodString>;
            address: import("zod").ZodString;
        }, import("zod/v4/core").$strip>>>;
        ccRecipients: import("zod").ZodOptional<import("zod").ZodArray<import("zod").ZodObject<{
            name: import("zod").ZodOptional<import("zod").ZodString>;
            address: import("zod").ZodString;
        }, import("zod/v4/core").$strip>>>;
        date: import("zod").ZodOptional<import("zod").ZodString>;
        plaintextBody: import("zod").ZodOptional<import("zod").ZodString>;
        htmlBody: import("zod").ZodOptional<import("zod").ZodString>;
        attachmentIds: import("zod").ZodOptional<import("zod").ZodArray<import("zod").ZodString>>;
    }, import("zod/v4/core").$strip>>;
}, import("zod/v4/core").$strip>>;
//# sourceMappingURL=index.d.ts.map