def __iand__(self, other):
        """Update a RangeSet with the intersection of itself and another."""
        self._binary_sanity_check(other)
        set.__iand__(self, other)
        return self
def __iand__ ( self , other ) : self . _binary_sanity_check ( other ) set . __iand__ ( self , other ) return self
Update a RangeSet with the intersection of itself and another.