writeline()

Functions like a file.writeline() call; however, it stores into the object's
cached memory rather than a file's IO.

def writeline(self, addition):
        """writeline()

Functions like a file.writeline() call; however, it stores into the object's
cached memory rather than a file's IO.
        """
        addition = addition.strip()
        self.held = self.held + addition + "\n"