code: def get_handler(self, handler_input, exception):
          # type: (Input, Exception) -> Union[AbstractExceptionHandler, None]
          
          for handler in self.exception_handlers:
              if handler.can_handle(
                      handler_input=handler_input, exception=exception):
                  return handler
          return None
docs: Get the exception handler that can handle the input and
          exception.
  
          :param handler_input: Generic input passed to the
              dispatcher.
          :type handler_input: Input
          :param exception: Exception thrown by
              :py:class:`ask_sdk_runtime.dispatch.GenericRequestDispatcher`
              dispatch method.
          :type exception: Exception
          :return: Exception Handler that can handle the input or None.
          :rtype: Union[None, ask_sdk_runtime.dispatch_components.exception_components.AbstractExceptionHandler]