Fix: add all_tied_weights_keys property

modeling_easysell.py

@@ -115,6 +115,10 @@ class EasySellForCausalLM(PreTrainedModel, GenerationMixin):
             n_embd=config.n_embd, dropout=config.dropout)
         self.model = GPT(gpt_cfg)
 
+    @property
+    def all_tied_weights_keys(self):
+        return {}
+
     def forward(self, input_ids, labels=None, **kwargs):
         logits, loss = self.model(input_ids, targets=labels)
         from transformers.modeling_outputs import CausalLMOutput