def col_join(self, bott):
        from sympy.matrices import MutableMatrix
        # Allows you to build a matrix even if it is null matrix
        if not self:
            return type(self)(bott)

        if self.cols != bott.cols:
            raise ShapeError(
                "`self` and `bott` must have the same number of columns.")
        newmat = MutableMatrix.zeros(self.rows + bott.rows, self.cols)
        newmat[:self.rows, :] = self
        newmat[self.rows:, :] = bott
        return type(self)(newmat)
DELETE /queued_images - Clear all active queued images
dataset/ETHPy150Open sympy/sympy/sympy/matrices/matrices.py/MatrixBase.col_join--crossover with--dataset/ETHPy150Open rcbops/glance-buildpackage/glance/api/cached_images.py/Controller.delete_queued_images