code: def get_list_columns(self):
          
  
          url = self.build_url(self._endpoints.get('get_list_columns'))
  
          response = self.con.get(url)
  
          if not response:
              return []
  
          data = response.json()
  
          return [self.list_column_constructor(parent=self, **{self._cloud_data_key: column})
                  for column in data.get('value', [])]
docs: Returns the sharepoint list columns