Great! It's time to wrap things up.

• Functions can be created in the following way:

  def function_name(function_arguments):
    function_body
  

• Use the return keyword to return a value from a function.
• You can return None, which indicates that you return nothing.

• You can provide default values for arguments when you define a function:

  def function_name(arg1, arg2=5):
    ...

• You can use pass as your function's body to do nothing.

So, are you ready for a short quiz?