code: def are_in_nested_dicts(nested_dict, *keys):
      
  
      if keys:
          # noinspection PyBroadException
          try:
              return are_in_nested_dicts(nested_dict[keys[0]], *keys[1:])
          except Exception:  # Key error or not a dict.
              return False
      return True
docs: Nested keys are inside of nested-dictionaries.
  
      :param nested_dict:
          Nested dictionary.
      :type nested_dict: dict
  
      :param keys:
          Nested keys.
      :type keys: object
  
      :return:
          True if nested keys are inside of nested-dictionaries, otherwise False.
      :rtype: bool