input: 
  from string import punctuation
  
  def remove_punctuations(s: str) -> str:
      """ Remove all punctuation characters from the given string of sentences.
      >>> remove_punctuations("This is a sample string!")
      "This is a sample string"
      >>> remove_punctuations("Hello, World! It's a great day.")
      "Hello World Its a great day"
      """
      return s.translate(str.maketrans('', '', punctuation))
  
output:     return s.translate(str.maketrans('', '', punctuation))