docs: def image_export(cls, source_path, dest_url, **kwargs):
          """Export the specific image to remote host or local file system """
          dest_path = urlparse.urlparse(dest_url).path
          if kwargs['remote_host']:
              target_path = ':'.join([kwargs['remote_host'], dest_path])
              command = ' '.join(['/usr/bin/scp',
                                  "-P", CONF.zvm.remotehost_sshd_port,
                                  "-o StrictHostKeyChecking=no",
                                  '-r ', source_path, target_path])
              (rc, output) = zvmutils.execute(command)
              if rc:
                  msg = ("Error happened when copying image file to remote "
                         "host with reason: %s" % output)
                  LOG.error(msg)
                  raise exception.SDKImageOperationError(rs=21, msg=output)
          else:
              # Copy to local file system
              LOG.debug("Remote_host not specified, will copy to local server")
              try:
                  shutil.copyfile(source_path, dest_path)
              except Exception as err:
                  msg = ("Export image from %(src)s to local file system"
                         " %(dest)s failed: %(err)s" %
                         {'src': source_path,
                          'dest': dest_path,
                          'err': six.text_type(err)})
                  LOG.error(msg)
                  raise exception.SDKImageOperationError(rs=22,
                                                         err=six.text_type(err))