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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 bake(self):
 """Find absolute times for all keys. Absolute time is stored in the KeyFrame dictionary as the variable __abs_time__. """

        self.unbake()
        for key in self.dct:
            self.get_absolute_time(key)
        self.is_baked = True