Function pseudonymize_batch 

pub async fn pseudonymize_batch<T>(
    item: Json<PseudonymizationBatchRequest<T>>,
    access_rules: Data<AccessRules>,
    session_storage: Data<Box<dyn SessionStorage>>,
    pep_system: Data<DistributedTranscryptor>,
    user: ReqData<AuthInfo>,
) -> Result<HttpResponse, PAASServerError>
where
    T: Pseudonymizable + Serialize + Clone + HasStructure,