add config

custom_model.py

@@ -1,5 +1,5 @@
 # custom_model.py
-from transformers import PreTrainedModel, PretrainedConfig
+from transformers import PreTrainedModel, PretrainedConfig, AutoConfig, AutoModel
 import torch
 import torch.nn as nn
 
@@ -19,3 +19,6 @@ class CustomModel(PreTrainedModel):
     def forward(self, input_ids):
         output = self.linear(input_ids)
         return output
+
+AutoConfig.register("custom-model", CustomModelConfig)
+AutoModel.register(CustomModelConfig, CustomModel)