def METHOD_NAME(self):
    kernel = ScaleKernel(RBFKernel(), batch_shape=torch.Size([2]))
    ls_init = torch.tensor([3.14, 4.13])
    kernel.initialize(outputscale=ls_init)
    actual_value = ls_init.view_as(kernel.outputscale)
    self.assertLess(torch.norm(kernel.outputscale - actual_value), 1e-5)