[s2s] two stage run_distributed_eval.py (#7105)

examples/seq2seq/utils.py

@@ -387,3 +387,10 @@ def parse_numeric_cl_kwargs(unparsed_args: List[str]) -> Dict[str, Union[int, fl
 
         result[unparsed_args[i][2:]] = value
     return result
+
+
+def write_txt_file(ordered_tgt, path):
+    f = Path(path).open("w")
+    for ln in ordered_tgt:
+        f.write(ln + "\n")
+        f.flush()