pub static SIGN_TYPE: &str = "sign_type";
pub static ERROR_RESPONSE_KEY: &str = "error_response";
pub static SIGN_TYPE_RSA: &str = "RSA";
pub const SIGN_TYPE_RSA2: &str = "RSA2";
pub static SHA_TYPE: &str = "SHA1";
pub static SHA_TYPE256: &str = "SHA256";
pub static SIGN_TYPE_SM2: &str = "SM2";
pub static SIGN_ALGORITHMS: &str = "SHA1WithRSA";
pub static SIGN_SHA256RSA_ALGORITHMS: &str = "SHA256WithRSA";
pub static ENCRYPT_TYPE_AES: &str = "AES";
pub static APP_ID: &str = "app_id";
pub static TARGET_APP_ID: &str = "target_app_id";
pub static FORMAT: &str = "format";
pub static METHOD: &str = "method";
pub static TIMESTAMP: &str = "timestamp";
pub static VERSION: &str = "version";
pub static SIGN: &str = "sign";
pub static ALIPAY_SDK: &str = "alipay_sdk";
pub static ACCESS_TOKEN: &str = "auth_token";
pub static APP_AUTH_TOKEN: &str = "app_auth_token";
pub static TERMINAL_TYPE: &str = "terminal_type";
pub static TERMINAL_INFO: &str = "terminal_info";
pub static CHARSET: &str = "charset";
pub static NOTIFY_URL: &str = "notify_url";
pub static RETURN_URL: &str = "return_url";
pub static ENCRYPT_TYPE: &str = "encrypt_type";
pub static APP_CERT_SN: &str = "app_cert_sn";
pub static ALIPAY_CERT_SN: &str = "alipay_cert_sn";
pub static ALIPAY_ROOT_CERT_SN: &str = "alipay_root_cert_sn";
pub static BIZ_CONTENT_KEY: &str = "biz_content";
pub static CHARSET_UTF8: &str = "UTF-8";
pub static CHARSET_GBK: &str = "GBK";
pub static FORMAT_JSON: &str = "json";
pub static FORMAT_TIME: &str = "%Y-%m-%d %H:%M:%S";
pub static PROD_CODE: &str = "prod_code";