[Doctest] Add configuration_deberta.py (huggingface#19968)

* Add Example docstring to DebertaConfig

* Add configuration_deberta to documentation_tests

* Add microsoft/deberta-base to example docstring

* Fix example docstring mistake

src/transformers/models/deberta/configuration_deberta.py

@@ -90,7 +90,21 @@ class DebertaConfig(PretrainedConfig):
  `["p2c", "c2p"]`.
  layer_norm_eps (`float`, optional, defaults to 1e-12):
  The epsilon used by the layer normalization layers.
- """
+
+ Example:
+
+ ```python
+ >>> from transformers import DebertaConfig, DebertaModel
+
+ >>> # Initializing a DeBERTa microsoft/deberta-base style configuration
+ >>> configuration = DebertaConfig()
+
+ >>> # Initializing a model (with random weights) from the microsoft/deberta-base style configuration
+ >>> model = DebertaModel(configuration)
+
+ >>> # Accessing the model configuration
+ >>> configuration = model.config
+ ```"""
  model_type = "deberta"
 
  def __init__(

utils/documentation_tests.txt

@@ -49,6 +49,7 @@ src/transformers/models/data2vec/configuration_data2vec_text.py
 src/transformers/models/data2vec/configuration_data2vec_vision.py
 src/transformers/models/data2vec/modeling_data2vec_audio.py
 src/transformers/models/data2vec/modeling_data2vec_vision.py
+src/transformers/models/deberta/configuration_deberta.py
 src/transformers/models/deberta/modeling_deberta.py
 src/transformers/models/deberta_v2/modeling_deberta_v2.py
 src/transformers/models/decision_transformer/configuration_decision_transformer.py