Update the_legal_pile_preprocessed.py

the_legal_pile_preprocessed.py

@@ -146,7 +146,12 @@ class LegalPile(datasets.GeneratorBasedBuilder):
         for filepath in filepaths:
             logger.info("⏳ Generating examples from = %s", filepath)
             with xz.open(open(filepath, "rb"), "rt", encoding='utf-8') as f:
+                header_line = True
                 for row in f:
+                    # skip jsonl intro line
+                    if header_line:
+                       header_line = False
+                       continue
                     data = json.loads(row)
                     yield id_, {
                         "text": data["text"]