code: def make_random_key() -> Text:
      
  
      r = SystemRandom()
      allowed = \
          'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_+/[]'
  
      return ''.join([r.choice(allowed) for _ in range(0, 50)])
docs: Generates a secure random string