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