export declare const C2C: {
    uin: import("napcat-protobuf").ScalarProtoFieldType<ScalarType.UINT32, true, false>;
    uid: import("napcat-protobuf").ScalarProtoFieldType<ScalarType.STRING, true, false>;
    field3: import("napcat-protobuf").ScalarProtoFieldType<ScalarType.UINT32, true, false>;
    sig: import("napcat-protobuf").ScalarProtoFieldType<ScalarType.UINT32, true, false>;
    receiverUin: import("napcat-protobuf").ScalarProtoFieldType<ScalarType.UINT32, true, false>;
    receiverUid: import("napcat-protobuf").ScalarProtoFieldType<ScalarType.STRING, true, false>;
};