fixing tests

keract/keract.py

@@ -3,11 +3,10 @@
 from collections import OrderedDict
 
 import numpy as np
+import tensorflow as tf
 import tensorflow.keras.backend as K
 from tensorflow.keras import Sequential
 from tensorflow.keras.models import Model
-import tensorflow as tf
-
 
 if tf.__version__ == '2.5.0':
     tf.compat.v1.experimental.output_all_intermediates(True)
@@ -212,16 +211,14 @@ def update_node(n):
             except AttributeError:
                 pass
 
-    if hasattr(module, '_layers'):
-        for layer in module._layers:
-            update_node(layer)
-            if nested:
-                _get_nodes(layer, nodes, output_format, nested, layer_names, depth + 1)
-    else:
-        for layer in module.layers:
-            update_node(layer)
-            if nested:
-                _get_nodes(layer, nodes, output_format, nested, layer_names, depth + 1)
+    try:
+        layers = module._layers if hasattr(module, '_layers') else module.layers
+    except AttributeError:
+        return
+    for layer in layers:
+        update_node(layer)
+        if nested:
+            _get_nodes(layer, nodes, output_format, nested, layer_names, depth + 1)
 
 
 # def _get_nodes(module, output_format, nested=False, layer_names=[]):