String literal with triple quotes in function definitions

Question

I am following the Python tutorial and at some point they talk about how the 1st statement of a function can be a String Literal. As far as the example goes, this String Lit

Answer 1

A string literal is a string in one of the many quoting options, that is not assigned to a variable.

So,

"String" # string literal
'string' # string literal
"""
  Multiline
  String
  Literal
"""
foo = "string variable"

When you have a string literal immediately after a def block, it becomes part of the documentation for that method, and is called a docstring

def foo(hello):
    """This is part of the documentation for foo"""

This is how you would use it:

>>> def foo(hello):
...     """This is the docstring"""
...     pass
... 
>>> foo.__doc__
'This is the docstring'