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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 derive_value(self, value):
 """Derives a new event from this one setting the ``value`` attribute. Args: value: (any):
 The value associated with the derived event. Returns: IonEvent: The newly generated non-thunk event. """

        return IonEvent(
            self.event_type,
            self.ion_type,
            value,
            self.field_name,
            self.annotations,
            self.depth
        )