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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 count(self) -> "CountQuery": """ Return count of objects in queryset instead of objects. """

        return CountQuery(
            db=self._db,
            model=self.model,
            q_objects=self._q_objects,
            annotations=self._annotations,
            custom_filters=self._custom_filters,
        )