Creating functions is the preferred method for developing reusable code. While many functions are user defined, most languages, including Python, have a wide variety of built-in functions that aid in development.   

• Research the various built-in functions that are available in Python. Pick one that you feel can be important in your development efforts and explain the reasons you chose this function.
• Describe how the function works, including the signature of the function, any parameters that are passed in, and values that will be returned from the function call.
• Be sure to post a substantive response to one of your classmates’ posts and cite any resources used.