private Amazon.IoT.Model.AttachPrincipalPolicyResponse CallAWSServiceOperation(IAmazonIoT client, Amazon.IoT.Model.AttachPrincipalPolicyRequest request) { Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "AWS IoT", "AttachPrincipalPolicy"); try { #if DESKTOP return(client.AttachPrincipalPolicy(request)); #elif CORECLR return(client.AttachPrincipalPolicyAsync(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; } }