diff --git a/python_coreml_stable_diffusion/torch2coreml.py b/python_coreml_stable_diffusion/torch2coreml.py
index 3963f53..e576050 100644
--- a/python_coreml_stable_diffusion/torch2coreml.py
+++ b/python_coreml_stable_diffusion/torch2coreml.py
@@ -10,6 +10,7 @@ from collections import OrderedDict, defaultdict
 from copy import deepcopy
 import coremltools as ct
 from diffusers import StableDiffusionPipeline
+from diffusers.models.vae import DiagonalGaussianDistribution
 import gc
 
 import logging
@@ -29,11 +30,22 @@ import torch
 import torch.nn as nn
 import torch.nn.functional as F
 
+#from coremltools.converters.mil.frontend.torch.torch_op_registry import register_torch_op
+#from coremltools.converters.mil.frontend.torch.ops import _get_inputs
+#from coremltools.converters.mil import Builder as mb
+#
+#@register_torch_op
+#def randn(context, node):
+#    inputs = _get_inputs(context, node, expected=5)
+#    shape = inputs[0]
+#
+#    x = mb.random_normal(shape=shape, mean=0., stddev=1.)
+#    context.add(x, node.name)
+
 torch.set_grad_enabled(False)
 
 from types import MethodType
 
-
 def _get_coreml_inputs(sample_inputs, args):
     return [
         ct.TensorType(
@@ -534,6 +546,7 @@ def convert_vae_encoder(pipe, args):
             h = self.encoder(sample)
             moments = self.quant_conv(h)
             diagonalNoise = diagonalNoise.to(sample.device)
+#            posterior = DiagonalGaussianDistribution(moments)
             posterior = CoreMLDiagonalGaussianDistribution(moments, diagonalNoise)
             posteriorSample = posterior.sample()