Adding the Latent Shift attribution method

captum/attr/__init__.py

@@ -11,6 +11,7 @@
 from captum.attr._core.input_x_gradient import InputXGradient  # noqa
 from captum.attr._core.integrated_gradients import IntegratedGradients  # noqa
 from captum.attr._core.kernel_shap import KernelShap  # noqa
+from captum.attr._core.latent_shift import LatentShift  # noqa
 from captum.attr._core.layer.grad_cam import LayerGradCam  # noqa
 from captum.attr._core.layer.internal_influence import InternalInfluence  # noqa
 from captum.attr._core.layer.layer_activation import LayerActivation  # noqa
@@ -140,4 +141,5 @@
     "Max",
     "Sum",
     "Count",
+    "LatentShift",
 ]