export declare const DEVICE_ID_HEADER = "x-device-id"; export declare const SESSION_ID_HEADER = "x-session-id"; export declare const REFERRER_HEADER = "x-coinflow-referrer"; export type CoinflowProtectionHeadersType = { [DEVICE_ID_HEADER]: string | null; [SESSION_ID_HEADER]: string | null; }; export declare function getCoinflowProtectionHeaders(): CoinflowProtectionHeadersType; export type CoinflowPurchaseHeadersType = CoinflowProtectionHeadersType & { [REFERRER_HEADER]: string | null; }; export declare function getCoinflowPurchaseHeaders(): CoinflowPurchaseHeadersType;