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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def sigint_handler(self, signum: int, frame) -> None: """Signal handler for SIGINTs which typically come from Ctrl-C events. If you need custom SIGINT behavior, then override this function. :param signum: signal number :param frame """

        if self.cur_pipe_proc_reader is not None:
            # Pass the SIGINT to the current pipe process
            self.cur_pipe_proc_reader.send_sigint()

        # Check if we are allowed to re-raise the KeyboardInterrupt
        if not self.sigint_protection:
            raise KeyboardInterrupt("Got a keyboard interrupt")