added file to convert pytorch->tf

pytorch_pretrained_bert/convert_hf_checkpoint_to_tf.py

@@ -21,7 +21,6 @@ import numpy as np
 from pytorch_pretrained_bert.modeling import BertConfig, BertModel
 
 
-
 def convert_hf_checkpoint_to_tf(model:BertModel, ckpt_dir:str):
 
     """
@@ -129,4 +128,4 @@ if __name__ == "__main__":
         config=BertConfig(args.config_file_path)
     ).from_pretrained(args.pretrained_model_name_or_path)
 
-    convert_hf_checkpoint_to_tf(model=model, ckpt_dir=args.cache_)
+    convert_hf_checkpoint_to_tf(model=model, ckpt_dir=args.cache_)
\ No newline at end of file