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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 save_metadata(self, profile="default"):
 """Save the database credentials, plus the database properties to your db.py profile."""

        if len(self.tables) > 0:
            f = profile_path(DBPY_PROFILE_ID, profile)
            dump_to_json(f, self.to_dict())