a) Before writing any code, you should go through a design process. Try to do so carefully - either follow a top-down approach, a full bottom-up approach, or some combination. But, in any case, you should come up with a list of functions you plan to implement, each with its own clear purpose. a. Create a document that outlines all the functions you will create, including a purpose for each, stating what the function does, and any parameters it has. The purpose for each function can become its docstring b) After you have written a description of your program, including the planned functions, go ahead and write code for each function. Be sure to create a docstring for each function. Turn in your program and the design document you created beforehand. Challenge: See if you can create a program so that the lines are drawn