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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 to_dict(self):
 """Return this Context as a dict suitable for json encoding."""

        import copy

        options = copy.deepcopy(self._options)

        if self._insert_tasks:
            options['insert_tasks'] = reference_to_path(self._insert_tasks)

        if self._persistence_engine:
            options['persistence_engine'] = reference_to_path(
                self._persistence_engine)

        options.update({
            '_tasks_inserted': self._tasks_inserted,
        })

        callbacks = self._options.get('callbacks')
        if callbacks:
            options['callbacks'] = encode_callbacks(callbacks)

        return options