Checks if the specified CNAME is available.
            
 Declaration Syntax
 Declaration Syntax| C# | 
CheckDNSAvailabilityResponse CheckDNSAvailability( CheckDNSAvailabilityRequest request )
 Parameters
 Parameters- request (CheckDNSAvailabilityRequest)
- Container for the necessary parameters to execute the CheckDNSAvailability service method.
 Return Value
 Return ValueThe response from the CheckDNSAvailability service method, as returned by ElasticBeanstalk.