code: def config(env=DEFAULT_ENV, default=None, engine=None, conn_max_age=0, ssl_require=False):
      
  
      config = {}
  
      s = os.environ.get(env, default)
  
      if s:
          config = parse(s, engine, conn_max_age, ssl_require)
  
      return config
docs: Returns configured DATABASE dictionary from DATABASE_URL.