code: def make_type_replacement_visitor(find_types, replacement_func):
      
      def visitor_fn(expression):
          """Return a replacement expression if the original expression is of the correct type."""
          if isinstance(expression, find_types):
              return replacement_func(expression)
          else:
              return expression
  
      return visitor_fn
docs: Return a visitor function that replaces expressions of a given type with new expressions.