code: public CertificateDescriptionInner verify(String resourceGroupName, String resourceName, String certificateName, String ifMatch) {
          return verifyWithServiceResponseAsync(resourceGroupName, resourceName, certificateName, ifMatch).toBlocking().single().body();
      }
docs: Verify certificate's private key possession.
  Verifies the certificate's private key possession by providing the leaf cert issued by the verifying pre uploaded certificate.
  
  @param resourceGroupName The name of the resource group that contains the IoT hub.
  @param resourceName The name of the IoT hub.
  @param certificateName The name of the certificate
  @param ifMatch ETag of the Certificate.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws ErrorDetailsException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the CertificateDescriptionInner object if successful.