class_docstr: A simple class with a memoized method
code: def __call__(self, x, *args, **kwds):
      debug = kwds.get("debug", False)
      if debug:
          print("debug:", x, args, kwds)
      return sum((x,) + args)
  
file_path: klepto/klepto/tests/test_workflow.py
imports: from klepto.keymaps import hashmap
  from klepto import lru_cache
  from klepto import inf_cache
  from klepto import keygen
label_desc: Use image node_id 1 for calling the Adder obj's underlying member method code with example usage: obj.__call__(x) and returns: sum