/// <summary>
 /// Загрузить подписи в базу
 /// </summary>
 private async Task UploadSignaturesToDataBase(IReadOnlyList <ISignatureFileData> signatureFileData) =>
 await signatureFileData.
 Void(_ => _messagingService.ShowMessage("Удаление подписей в базе")).
 Map(signatures => _signatureServerServiceFactory.UsingServiceRetry(service => service.Operations.DeleteSignatures())).
 MapAsync(_ => ConverterDataFileToDto.SignaturesToDto(signatureFileData)).
 VoidAsync(_ => _messagingService.ShowMessage("Отправка подписей в базу")).
 MapBindAsync(signatures => _signatureServerServiceFactory.UsingServiceRetry(service => service.Operations.UploadSignatures(signatures))).
 VoidAsync(ShowMessage);
        /// <summary>
        /// Получить подписи по идентификаторам синхронно
        /// </summary>

        private static Func <IList <SignatureFileRequest>, IResultAppCollection <ISignatureFileApp> > GetSignaturesSyncList(SignatureServerServiceFactory signatureServerServiceFactory,
                                                                                                                            ISignatureConverter signatureConverter, string signatureFolder) =>
        signaturesFileRequest =>
        signaturesFileRequest.
        Select(signatureRequest => signatureRequest.PersonId).
        Map(ids => signatureServerServiceFactory.UsingServiceRetry(service => service.Operations.GetSignatures(ids.ToList()))).
        WaitAndUnwrapException().
        ToResultValueApplication().
        ResultValueOk(ConverterDataFileFromDto.SignaturesFileDataFromDto).
        Map(signatures => GetSignaturesFileApp(signatures, signaturesFileRequest, signatureConverter, signatureFolder));
 private async Task <IResultValue <string> > GetSignaturesMicrostation() =>
 await _signatureServerServiceFactory.UsingServiceRetry(service => service.Operations.GetSignaturesMicrostation()).
 ResultValueOkAsync(ConverterMicrostationDataFromDto.MicrostationDataFileFromDto).
 ResultValueOkBindAsync(signatures => _fileSystemOperations.UnzipFileAndSave(_signatureMicrostationFileName,
                                                                             signatures.MicrostationDataBase));