code: def import_string(dotted_path):
      
      try:
          module_path, class_name = dotted_path.rsplit('.', 1)
      except ValueError as err:
          raise ImportError("%s doesn't look like a module path" % dotted_path) from err
  
      module = import_module(module_path)
  
      try:
          return getattr(module, class_name)
      except AttributeError as err:
          raise ImportError('Module "%s" does not define a "%s" attribute/class' % (
              module_path, class_name)) from err
docs: Import a dotted module path and return the attribute/class designated by the
      last name in the path. Raise ImportError if the import failed.
      
      Args:
          dotted_path: The path to attempt importing
  
      Returns:
          Imported class/attribute