functions that return by reaching the end of the function (and not from return statementhave none for return value the none value is written without quotes and with capital "nand lowercase "oneas side notenone will not be displayed in the interactive shell like other values will be 'this is string value 'this is string value none functions that don' seem to return anything actually return the none value for exampleprint(returns nonespam print('hello world!'hello worldspam =none true creating the computer' artificial intelligence def getcomputermove(boardcomputerletter) given board and the computer' letterdetermine where to move and return that move if computerletter =' ' playerletter ' else playerletter 'xthe getcomputermove(function contains the ai' code the first argument is tic tac toe board for the board parameter the second argument is letter for the computer either 'xor 'oin the computerletter parameter the first few lines simply assign the other letter to variable named playerletter this way the same code can be used whether the computer is or the function will returns an integer from to representing the computer' move remember how the tic tac toe ai algorithm worksfirstsee if there' move the computer can make that will win the game if there istake that move otherwisego to the second step post questions to