See :py:meth:`nornir.core.inventory.Inventory.filter`

        Returns:
            :obj:`Nornir`: A new object with same configuration as ``self`` but filtered inventory.

def filter(self, *args, **kwargs):
        """
        See :py:meth:`nornir.core.inventory.Inventory.filter`

        Returns:
            :obj:`Nornir`: A new object with same configuration as ``self`` but filtered inventory.
        """
        b = Nornir(**self.__dict__)
        b.inventory = self.inventory.filter(*args, **kwargs)
        return b