docstrings for python code code example

Example 1: python best docstring format

"""
This is an example of Google style.

Args:
    param1: This is the first param.
    param2: This is a second param.

Returns:
    This is a description of what is returned.

Raises:
    KeyError: Raises an exception.
"""

Example 2: python function docstring

def functionName():
    """
    This is a function docstring
    """