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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 reload(self):
 """Reloads the current model's data from the underlying database record, updating it in-place."""

        self.emit('will_reload')
        self.populate(self.collection.find_one(type(self)._id_spec(self['_id'])))
        self.emit('did_reload')