code: def ls(quiet, verbose, uri):
      
      if dtoolcore._is_dataset(uri, CONFIG_PATH):
          _list_dataset_items(uri, quiet, verbose)
      else:
          _list_datasets(uri, quiet, verbose)
docs: List datasets / items in a dataset.
  
      If the URI is a dataset the items in the dataset will be listed.
      It is not possible to list the items in a proto dataset.
  
      If the URI is a location containing datasets the datasets will be listed.
      Proto datasets are highlighted in red.