input: Write a function that takes in a string of sentences and removes all the punctuations. The function should return the cleaned string without any punctuation marks. The input string may contain various punctuation characters such as commas, periods, exclamation marks, question marks, etc. If the input string is empty, the function should return an empty string.
  
  def remove_punctuations(s):
      return s.translate(str.maketrans('', '', string.punctuation))
  
  assert remove_punctuations("This is a sample string!") == "This is a sample string"
  assert remove_punctuations("Hello, World!") == "Hello World"
  assert remove_punctuations("What's your name?") == "Whats your name"
  assert remove_punctuations("") == ""
  assert remove_punctuations("No punctuation here") == "No punctuation here"
output: def remove_punctuations(s):
      import string
      return s.translate(str.maketrans('', '', string.punctuation))