text: public virtual DescribeAvailabilityZonesResponse DescribeAvailabilityZones(DescribeAvailabilityZonesRequest request){var options = new InvokeOptions();options.RequestMarshaller = DescribeAvailabilityZonesRequestMarshaller.Instance;options.ResponseUnmarshaller = DescribeAvailabilityZonesResponseUnmarshaller.Instance;return Invoke<DescribeAvailabilityZonesResponse>(request, options);}