text: """         Callables
  
  What are callables?
  Any object that can be called using the ()       # operator always return a value     -> like functions and methods    -> but it goes beyond these two...
  Many other objects in Python are also callable
  
  To see if an object is callable, we can use the builtin function: callable
  
  callable(print) -> True
  callable('abc'.upper)  ->  True
  callable*str,upper
  
  """