You prepare a list to send to the insurance company. As you finish, you notice you misformatted it. Given an object with at least one key/value pair, convert all the values to numbers.
convertToNumber({ "piano"="200" }) ➞ { "piano"=200 }
convertToNumber({ "piano"="200", "tv"="300" }) ➞ { "piano"=200, "tv"=300 }
convertToNumber({ "piano"="200", "tv"="300", "stereo"="400" }) ➞ { "piano"=200, "tv"=300, "stereo"=400 }N/A