To be used as a decorator. Will define the decorated method
        as a write pipe method to be called when client writes to the pipe

def setter(self, fset):
        """
        To be used as a decorator. Will define the decorated method
        as a write pipe method to be called when client writes to the pipe
        """
        self.fset = fset
        self.pipe_write = PipeWriteType.PIPE_READ_WRITE
        return self