TF: properly handle kwargs in encoder_decoder architectures (#16465)

* properly handle kwargs in encoder_decoder architectures

* make fixup

tests/encoder_decoder/test_modeling_tf_encoder_decoder.py

@@ -91,6 +91,7 @@ class TFEncoderDecoderMixin:
             decoder_input_ids=decoder_input_ids,
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
+            kwargs=kwargs,
         )
 
         self.assertEqual(
@@ -122,6 +123,7 @@ class TFEncoderDecoderMixin:
             decoder_input_ids=decoder_input_ids,
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
+            kwargs=kwargs,
         )
         self.assertEqual(
             outputs_encoder_decoder["logits"].shape, (decoder_input_ids.shape + (decoder_config.vocab_size,))
@@ -137,6 +139,7 @@ class TFEncoderDecoderMixin:
             decoder_input_ids=decoder_input_ids,
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
+            kwargs=kwargs,
         )
 
         self.assertEqual(
@@ -167,6 +170,7 @@ class TFEncoderDecoderMixin:
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
             return_dict=True,
+            kwargs=kwargs,
         )
 
         self.assertEqual(
@@ -195,6 +199,7 @@ class TFEncoderDecoderMixin:
             decoder_input_ids=decoder_input_ids,
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
+            kwargs=kwargs,
         )
         out_2 = np.array(outputs[0])
         out_2[np.isnan(out_2)] = 0
@@ -208,6 +213,7 @@ class TFEncoderDecoderMixin:
                 decoder_input_ids=decoder_input_ids,
                 attention_mask=attention_mask,
                 decoder_attention_mask=decoder_attention_mask,
+                kwargs=kwargs,
             )
             out_1 = np.array(after_outputs[0])
             out_1[np.isnan(out_1)] = 0
@@ -235,6 +241,7 @@ class TFEncoderDecoderMixin:
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
             labels=labels,
+            kwargs=kwargs,
         )
 
         # Make sure `loss` exist
@@ -269,6 +276,7 @@ class TFEncoderDecoderMixin:
             attention_mask=attention_mask,
             decoder_attention_mask=decoder_attention_mask,
             output_attentions=True,
+            kwargs=kwargs,
         )
 
         encoder_attentions = outputs_encoder_decoder["encoder_attentions"]