human
I wrote the below code

    if (fd == (-1)):
        signal.signal(signal.SIGCHLD, signal.SIG_DFL)
    else:
        def noopSignalHandler(*args):
            pass
        signal.signal(signal.SIGCHLD, noopSignalHandler)
        signal.siginterrupt(signal.SIGCHLD, False)
    return signal.set_wakeup_fd(fd)

What's a good function header?

Here's a good function header?
assistant
#Here's a good function header.

def installHandler(fd):