diff --git a/example.py b/example.py
new file mode 100644
index 0000000..b71528e
--- /dev/null
+++ b/example.py
@@ -0,0 +1,55 @@
+import torch
+import torch.nn as nn
+import torch.nn.functional as F
+
+from trace_commentor import Commentor
+
+
+class Net(nn.Module):
+
+    def __init__(self):
+        super(Net, self).__init__()
+        # 1 input image channel, 6 output channels, 5x5 square convolution
+        # kernel
+        self.conv1 = nn.Conv2d(1, 6, 5)
+        self.conv2 = nn.Conv2d(6, 16, 5)
+        # an affine operation: y = Wx + b
+        self.fc1 = nn.Linear(16 * 5 * 5, 120)  # 5*5 from image dimension
+        self.fc2 = nn.Linear(120, 84)
+        self.fc3 = nn.Linear(84, 10)
+
+    @Commentor()
+    def forward(self, input):
+        # Convolution layer C1: 1 input image channel, 6 output channels,
+        # 5x5 square convolution, it uses RELU activation function, and
+        # outputs a Tensor with size (N, 6, 28, 28), where N is the size of the batch
+        c1 = F.relu(self.conv1(input))
+        # Subsampling layer S2: 2x2 grid, purely functional,
+        # this layer does not have any parameter, and outputs a (N, 16, 14, 14) Tensor
+        s2 = F.max_pool2d(c1, (2, 2))
+        # Convolution layer C3: 6 input channels, 16 output channels,
+        # 5x5 square convolution, it uses RELU activation function, and
+        # outputs a (N, 16, 10, 10) Tensor
+        c3 = F.relu(self.conv2(s2))
+        # Subsampling layer S4: 2x2 grid, purely functional,
+        # this layer does not have any parameter, and outputs a (N, 16, 5, 5) Tensor
+        s4 = F.max_pool2d(c3, 2)
+        # Flatten operation: purely functional, outputs a (N, 400) Tensor
+        s4 = torch.flatten(s4, 1)
+        # Fully connected layer F5: (N, 400) Tensor input,
+        # and outputs a (N, 120) Tensor, it uses RELU activation function
+        f5 = F.relu(self.fc1(s4))
+        # Fully connected layer F6: (N, 120) Tensor input,
+        # and outputs a (N, 84) Tensor, it uses RELU activation function
+        f6 = F.relu(self.fc2(f5))
+        # Gaussian layer OUTPUT: (N, 84) Tensor input, and
+        # outputs a (N, 10) Tensor
+        output = self.fc3(f6)
+        return output
+
+
+net = Net()
+
+input = torch.randn(1, 1, 32, 32)
+out = net(input)
+print(out)
diff --git a/experiment.py b/experiment.py
deleted file mode 100644
index f9ca756..0000000
--- a/experiment.py
+++ /dev/null
@@ -1,23 +0,0 @@
-import torch
-import torch.nn as nn
-from tests.test_utils import *
-
-def test():
-
-    @Commentor(_globals=globals())
-    def target():
-        x = torch.ones(4, 5)
-        for i in range(3):
-            x = x[..., None, :]
-
-        a = torch.randn(309, 110, 3)[:100]
-        f = nn.Linear(3, 128)
-        b = f(a.reshape(-1, 3)).reshape(-1, 110, 128)
-        c = torch.concat((a, b), dim=-1)
-
-        return c.flatten()
-        
-    target()
-
-
-test()
diff --git a/tests/test_torch.py b/tests/test_torch.py
index 0fd971d..26eebaf 100644
--- a/tests/test_torch.py
+++ b/tests/test_torch.py
@@ -6,7 +6,7 @@ from test_utils import *
 
 def test_torch():
 
-    @Commentor("<return>", _globals=globals())
+    @Commentor("<return>")
     def target():
 
         x = torch.ones(4, 5)
diff --git a/trace_commentor/commentor.py b/trace_commentor/commentor.py
index 7601dc2..497d434 100644
--- a/trace_commentor/commentor.py
+++ b/trace_commentor/commentor.py
@@ -1,7 +1,5 @@
 import ast
 import inspect
-import sys
-import rich
 
 from inspect import getfullargspec
 from functools import wraps
@@ -14,9 +12,9 @@ from .utils import sign, to_source, comment_to_file
 
 class Commentor(object):
 
-    def __init__(self, output="<stderr>", _globals=dict(), fmt=[], check=True, _exit=True) -> None:
+    def __init__(self, output="<stderr>", fmt=[], check=True, _exit=True) -> None:
         self._locals = dict()
-        self._globals = _globals
+        self._globals = inspect.stack()[1][0].f_globals
         self._return = None
         self._formatters = fmt + formatters.LIST
         self._lines = []