code: def get_unit_name(unit_id):
      
      attribute = 'cn'
      response = LDAP_search(
          pattern_search='(uniqueIdentifier={})'.format(unit_id),
          attribute=attribute
      )
      try:
          unit_name = get_attribute(response, attribute)
      except Exception:
          raise EpflLdapException("The unit with id '{}' was not found".format(unit_id))
  
      return unit_name
docs: Return the unit name to the unit 'unit_id'