code: def descriptors(package):
      
      from os import path
      dpath = _descriptor_path(package)
      if path.isfile(dpath):
          import json
          with open(dpath) as f:
              jdb = json.load(f)
          return jdb
      else:
          return None
docs: Returns a dictionary of descriptors deserialized from JSON for the
      specified package.
  
      Args:
          package (str): name of the python package to get settings for.