input: Write a function to generate a string with each phrase followed by its length from a given list of phrases. If the list is empty, return an empty string.
  assert phrase_with_length(["A bird in the hand", "is worth two in the bush"]) == "A bird in the hand (17)is worth two in the bush (25)"
  assert phrase_with_length([]) == ""
  assert phrase_with_length(["Hello"]) == "Hello (5)"
output: def phrase_with_length(phrases):
      if not phrases:
          return ""
      return "".join([f"{phrase} ({len(phrase)})" for phrase in phrases])