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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 write_grindstone(self):
 """ Writes self.gs to self.grindstone_path. """

        with open(self.grindstone_path, 'w') as f:
            # Write the JSON dump of the file
            f.write(json.dumps(self.grindstone))