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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 add_preset(self, name, desc="", note=""):
 """Add a new command line preset for the current options with the specified name. :param name: the name of the new preset :returns: True on success or False otherwise """

        policy = self.policy
        if policy.find_preset(name):
            self.ui_log.error("A preset named '%s' already exists" % name)
            return False

        desc = desc or self.opts.desc
        note = note or self.opts.note

        try:
            policy.add_preset(name=name, desc=desc, note=note, opts=self.opts)
        except Exception as e:
            self.ui_log.error("Could not add preset: %s" % e)
            return False

        # Filter --add-preset <name> from arguments list
        arg_index = self._args.index("--add-preset")
        args = self._args[0:arg_index] + self._args[arg_index + 2:]

        self.ui_log.info("Added preset '%s' with options %s\n" %
                         (name, " ".join(args)))
        return True