[Doctest] Add configuration_camembert.py (#20039)

* Add example docstring for CamembertConfig

* Add configuration_camembert to documentation_tests

src/transformers/models/camembert/configuration_camembert.py

@@ -41,7 +41,21 @@ class CamembertConfig(RobertaConfig):
     This class overrides [`RobertaConfig`]. Please check the superclass for the appropriate documentation alongside
     usage examples. Instantiating a configuration with the defaults will yield a similar configuration to that of the
     Camembert [camembert-base](https://huggingface.co/camembert-base) architecture.
-    """
+
+    Example:
+
+    ```python
+    >>> from transformers import CamembertConfig, CamembertModel
+
+    >>> # Initializing a Camembert camembert-base style configuration
+    >>> configuration = CamembertConfig()
+
+    >>> # Initializing a model (with random weights) from the camembert-base style configuration
+    >>> model = CamembertModel(configuration)
+
+    >>> # Accessing the model configuration
+    >>> configuration = model.config
+    ```"""
 
     model_type = "camembert"
 

utils/documentation_tests.txt

@@ -32,6 +32,7 @@ src/transformers/models/blenderbot/modeling_blenderbot.py
 src/transformers/models/blenderbot_small/configuration_blenderbot_small.py
 src/transformers/models/blenderbot_small/modeling_blenderbot_small.py
 src/transformers/models/bloom/configuration_bloom.py
+src/transformers/models/camembert/configuration_camembert.py
 src/transformers/models/canine/configuration_canine.py
 src/transformers/models/clip/configuration_clip.py
 src/transformers/models/codegen/configuration_codegen.py