Just corrected a small typo
@@ -1261,7 +1261,7 @@ class Network(Layer):
"""
if not self.built:
raise ValueError(
- 'This model has never been called, this its weights '
+ 'This model has never been called, thus its weights '
'have not yet been created, so no summary can be displayed. '
'Build the model first '
'(e.g. by calling it on some test data).')
