private Amazon.DocDB.Model.ModifyDBInstanceResponse CallAWSServiceOperation(IAmazonDocDB client, Amazon.DocDB.Model.ModifyDBInstanceRequest request)
 {
     Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "Amazon DocumentDB (with MongoDB compatibility)", "ModifyDBInstance");
     try
     {
         #if DESKTOP
         return client.ModifyDBInstance(request);
         #elif CORECLR
         return client.ModifyDBInstanceAsync(request).GetAwaiter().GetResult();
         #else
                 #error "Unknown build edition"
         #endif
     }
     catch (AmazonServiceException exc)
     {
         var webException = exc.InnerException as System.Net.WebException;
         if (webException != null)
         {
             throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
         }
         throw;
     }
 }
 public object Execute(ExecutorContext context)
 {
     var cmdletContext = context as CmdletContext;
     // create request
     var request = new Amazon.DocDB.Model.ModifyDBInstanceRequest();
     
     if (cmdletContext.ApplyImmediately != null)
     {
         request.ApplyImmediately = cmdletContext.ApplyImmediately.Value;
     }
     if (cmdletContext.AutoMinorVersionUpgrade != null)
     {
         request.AutoMinorVersionUpgrade = cmdletContext.AutoMinorVersionUpgrade.Value;
     }
     if (cmdletContext.CACertificateIdentifier != null)
     {
         request.CACertificateIdentifier = cmdletContext.CACertificateIdentifier;
     }
     if (cmdletContext.DBInstanceClass != null)
     {
         request.DBInstanceClass = cmdletContext.DBInstanceClass;
     }
     if (cmdletContext.DBInstanceIdentifier != null)
     {
         request.DBInstanceIdentifier = cmdletContext.DBInstanceIdentifier;
     }
     if (cmdletContext.NewDBInstanceIdentifier != null)
     {
         request.NewDBInstanceIdentifier = cmdletContext.NewDBInstanceIdentifier;
     }
     if (cmdletContext.PreferredMaintenanceWindow != null)
     {
         request.PreferredMaintenanceWindow = cmdletContext.PreferredMaintenanceWindow;
     }
     if (cmdletContext.PromotionTier != null)
     {
         request.PromotionTier = cmdletContext.PromotionTier.Value;
     }
     
     CmdletOutput output;
     
     // issue call
     var client = Client ?? CreateClient(_CurrentCredentials, _RegionEndpoint);
     try
     {
         var response = CallAWSServiceOperation(client, request);
         object pipelineOutput = null;
         pipelineOutput = cmdletContext.Select(response, this);
         output = new CmdletOutput
         {
             PipelineOutput = pipelineOutput,
             ServiceResponse = response
         };
     }
     catch (Exception e)
     {
         output = new CmdletOutput { ErrorResponse = e };
     }
     
     return output;
 }