new_contents: 
  class Int(object):
      '''
      Hepler to provide literal ints in templates
      '''
      def __getitem__(self, key):
          return int(key)
  
  
  
  class _float(float):
      def __getitem__(self, key):
          return self + (float(key) / 10 ** len(key))
  
  
  class Float(object):
      '''
      Helper to provide literal floats in templates
      '''
      def __getitem__(self, key):
          return _float(key)
  
  
  class String(object):
      def __getitem__(self, key):
          return key
  
  
  literal = {
      'int': Int(),
      'float': Float(),
      'str': String(),
  }
  
subject: Add utils module