code: def info(cache_dir=CACHE_DIR, product=DEFAULT_PRODUCT):
      
      datasource_root, _ = ensure_setup(cache_dir, product)
      util.check_call_make(datasource_root, targets=['info'])
docs: Show info about the product cache.
  
      :param cache_dir: Root of the DEM cache folder.
      :param product: DEM product choice.