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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 cache_data(self):
 """ Cache some basic data such as financial statement metrics """

        # Set Slug if not set
        if not self.slug_name:
            self.slug_name = slugify(self.name).strip()
            if len(self.slug_name) > 255:
                self.slug_name = self.slug_name[0:254]