code: def set_cts_property(self, prop, value, lang=None):
          
          if not isinstance(value, Literal):
              value = Literal(value, lang=lang)
          prop = RDF_NAMESPACES.CTS.term(prop)
  
          if prop == self.DC_TITLE_KEY:
              self.set_label(value, lang)
  
          self.metadata.add(prop, value)
docs: Set given property in CTS Namespace
  
          .. example::
              collection.set_cts_property("groupname", "MyCapytain", "eng")
  
          :param prop: Property to set (Without namespace)
          :param value: Value to set for given property
          :param lang: Language to set for given value