input: from typing import List
  
  def remove_punctuations(sentences: List[str]) -> List[str]:
      """Remove all punctuations from given list of sentences.
      >>> remove_punctuations(["Hello, World!", "This is a test!"])
      ["Hello World", "This is a test"]
      >>> remove_punctuations(["Do not remove commas."])
      ["Do not remove commas"]
      """
output:     import string
      return [sentence.translate(str.maketrans('', '', string.punctuation)) for sentence in sentences]