input: 
  from typing import List
  
  def has_close_elements(sentence: str) -> str:
      """Remove all punctuations from a given string of sentences.
      >>> has_close_elements("Hello, World!")
      'Hello World'
      >>> has_close_elements("This is a test: to remove punctuations.")
      'This is a test to remove punctuations'
      """
  
output:     import string
      return sentence.translate(str.maketrans('', '', string.punctuation))