code: @Override
      public RejectCertificateTransferResult rejectCertificateTransfer(RejectCertificateTransferRequest request) {
          request = beforeClientExecution(request);
          return executeRejectCertificateTransfer(request);
      }
docs: <p>
  Rejects a pending certificate transfer. After AWS IoT rejects a certificate transfer, the certificate status
  changes from <b>PENDING_TRANSFER</b> to <b>INACTIVE</b>.
  </p>
  <p>
  To check for pending certificate transfers, call <a>ListCertificates</a> to enumerate your certificates.
  </p>
  <p>
  This operation can only be called by the transfer destination. After it is called, the certificate will be
  returned to the source's account in the INACTIVE state.
  </p>
  
  @param rejectCertificateTransferRequest
  The input for the RejectCertificateTransfer operation.
  @return Result of the RejectCertificateTransfer operation returned by the service.
  @throws ResourceNotFoundException
  The specified resource does not exist.
  @throws TransferAlreadyCompletedException
  You can't revert the certificate transfer because the transfer is already complete.
  @throws InvalidRequestException
  The request is not valid.
  @throws ThrottlingException
  The rate exceeds the limit.
  @throws UnauthorizedException
  You are not authorized to perform this operation.
  @throws ServiceUnavailableException
  The service is temporarily unavailable.
  @throws InternalFailureException
  An unexpected error has occurred.
  @sample AWSIot.RejectCertificateTransfer