[Doctests] add `configuration_blenderbot.py` (#19577)

* yoso config for doctest

* Revert "yoso config for doctest"

This reverts commit eae128d6f1b3631b676ffbcc181390e338819bd1.

* add configurations.blenderbot.py for doctests

* add configuration.blenderbot for doctest

src/transformers/models/blenderbot/configuration_blenderbot.py

@@ -95,12 +95,12 @@ class BlenderbotConfig(PretrainedConfig):
     Example:
 
     ```python
-    >>> from transformers import BlenderbotModel, BlenderbotConfig
+    >>> from transformers import BlenderbotConfig, BlenderbotModel
 
     >>> # Initializing a Blenderbot facebook/blenderbot-3B style configuration
     >>> configuration = BlenderbotConfig()
 
-    >>> # Initializing a model from the facebook/blenderbot-3B style configuration
+    >>> # Initializing a model (with random weights) from the facebook/blenderbot-3B style configuration
     >>> model = BlenderbotModel(configuration)
 
     >>> # Accessing the model configuration

utils/documentation_tests.txt

@@ -25,6 +25,7 @@ src/transformers/models/bert/modeling_tf_bert.py
 src/transformers/models/bert_generation/configuration_bert_generation.py
 src/transformers/models/bigbird_pegasus/modeling_bigbird_pegasus.py
 src/transformers/models/big_bird/modeling_big_bird.py
+src/transformers/models/blenderbot/configuration_blenderbot.py
 src/transformers/models/blenderbot/modeling_blenderbot.py
 src/transformers/models/blenderbot_small/modeling_blenderbot_small.py
 src/transformers/models/bloom/configuration_bloom.py