I need a function called decode(messagefile) that can read in an encoded message from a .txt file and return the decoded version as a string.Here's an example of what the messagefile .txt file will look like: 3 love6 computers2 dogs4 cats1 I5 youAs you can see, each word is associated with a number. Imagine you ordered all those numbers from smallest to biggest and arranged them into a pyramid. Each line of the pyramid includes one more number than the line before it: 12 34 5 6The numbers at the