code: def _check_dhcp_server(self, vboxnet):
          
  
          properties = yield from self._execute("list", ["dhcpservers"])
          flag_dhcp_server_found = False
          for prop in properties.splitlines():
              try:
                  name, value = prop.split(':', 1)
              except ValueError:
                  continue
              if name.strip() == "NetworkName" and value.strip().endswith(vboxnet):
                  flag_dhcp_server_found = True
              if flag_dhcp_server_found and name.strip() == "Enabled":
                  if value.strip() == "Yes":
                      return True
          return False
docs: Check if the DHCP server associated with a vboxnet is enabled.
  
          :param vboxnet: vboxnet name
  
          :returns: boolean