export declare const ContentType = "Content-Type";
export declare const ContentTypeJson = "application/json";
export declare const DefaultContentType: string;
export declare const HTTPHeaderKey = "HTTP-Header";
export declare const HTTPHeaderKeyRequestID = "X-Request-Id";
export declare const HTTPHeaderKeyLogID = "X-Tt-Logid";
export declare const HTTPKeyStatusCode = "http_status_code";
export declare enum AppType {
    ISV = "isv",
    Internal = "internal"
}
export declare enum Domain {
    FeiShu = "https://open.feishu.cn",
    LarkSuite = "https://open.larksuite.com"
}
export declare enum CallbackType {
    Event = "event_callback",
    Challenge = "url_verification"
}
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