code: def is_jsonable(obj) -> bool:
      
      try:
          return obj==json.loads(json.dumps(obj))
      except TypeError:
          return False
      except:
          raise
docs: Check if an object is jsonable.
  
      An object is jsonable if it is json serialisable and by loading its json representation the same object is recovered.
      Parameters
      ----------
      obj : 
          Python object
  
      Returns
      -------
      bool
  
      >>> is_jsonable([1,2,3])
      True
      >>> is_jsonable((1,2,3))
      False
      >>> is_jsonable({'a':True,'b':1,'c':None})
      True