code: public PreValidateEnableBackupResponseInner validate(String azureRegion, PreValidateEnableBackupRequest parameters) {
          return validateWithServiceResponseAsync(azureRegion, parameters).toBlocking().single().body();
      }
docs: It will validate followings
  1. Vault capacity
  2. VM is already protected
  3. Any VM related configuration passed in properties.
  
  @param azureRegion Azure region to hit Api
  @param parameters Enable backup validation request on Virtual Machine
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the PreValidateEnableBackupResponseInner object if successful.