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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 _make_unique_title(self, title):
 """Make the title unique. Adds a counter to the title to prevent duplicates. Prior to IDA 6.8, two graphs with the same title could crash IDA. This has been fixed (https://www.hex-rays.com/products/ida/6.8/index.shtml). The code will not change for support of older versions and as it is more usable this way. """

        unique_title = title

        for counter in itertools.count():
            unique_title = "{}-{}".format(title, counter)
            if not idaapi.find_tform(unique_title):
                break

        return unique_title