code: def add_one(self, url: str,
                  url_properties: Optional[URLProperties]=None,
                  url_data: Optional[URLData]=None):
          '''Add a single URL to the table.
  
          Args:
              url: The URL to be added
              url_properties: Additional values to be saved
              url_data: Additional data to be saved
          '''
          self.add_many([AddURLInfo(url, url_properties, url_data)]f add_one(self, url: str,
                  url_properties: Optional[URLProperties]=None,
                  url_data: Optional[URLData]=None):
          '''Add a single URL to the table.
  
          Args:
              url: The URL to be added
              url_properties: Additional values to be saved
              url_data: Additional data to be saved
          '''
          self.add_many([AddURLInfo(url, url_properties, url_data)])
docs: Add a single URL to the table.
  
          Args:
              url: The URL to be added
              url_properties: Additional values to be saved
              url_data: Additional data to be saved