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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 hybridize(self, active=True, **kwargs):
 """Activates or deactivates `HybridBlock` s recursively. Has no effect on non-hybrid children. Parameters active : bool, default True Whether to turn hybrid on or off. **kwargs : string Additional flags for hybridized operator. """

        if self._children and all(isinstance(c, HybridBlock) for c in self._children.values()):
            warnings.warn(
                "All children of this Sequential layer '%s' are HybridBlocks. Consider "
                "using HybridSequential for the best performance."%self.prefix, stacklevel=2)
        super(Sequential, self).hybridize(active, **kwargs)