code: @Override
      public ListVPCEConfigurationsResult listVPCEConfigurations(ListVPCEConfigurationsRequest request) {
          request = beforeClientExecution(request);
          return executeListVPCEConfigurations(request);
      }
docs: <p>
  Returns information about all Amazon Virtual Private Cloud (VPC) endpoint configurations in the AWS account.
  </p>
  
  @param listVPCEConfigurationsRequest
  @return Result of the ListVPCEConfigurations operation returned by the service.
  @throws ArgumentException
  An invalid argument was specified.
  @throws ServiceAccountException
  There was a problem with the service account.
  @sample AWSDeviceFarm.ListVPCEConfigurations
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/devicefarm-2015-06-23/ListVPCEConfigurations"
  target="_top">AWS API Documentation</a>