input: Write a python function to print the length of each key in a dictionary.
  assert print_key_lengths({"apple": 1, "banana": 2, "cherry": 3})==["The length of apple is 5", "The length of banana is 6", "The length of cherry is 6"]
  assert print_key_lengths({"a": 1, "ab": 2, "abc": 3})==["The length of a is 1", "The length of ab is 2", "The length of abc is 3"]
  assert print_key_lengths({"one": 1, "two": 2, "three": 3})==["The length of one is 3", "The length of two is 3", "The length of three is 5"]
output: def print_key_lengths(d):
      return [f"The length of {k} is {len(k)}" for k in d]