chore: import upstream snapshot with attribution

PFPO/data/numina_math.py

@@ -0,0 +1,22 @@
+import json
+import sys
+
+from datasets import load_dataset
+from general_util.logger import get_child_logger
+
+logger = get_child_logger(__name__)
+
+
+class NuminaMathReader:
+    def __init__(self, id_field: str = "id", split: str = "train"):
+        self.id_field = id_field
+        self.split = split
+
+    def __call__(self, file_path):
+        data = load_dataset(file_path, split=self.split).to_list()
+        logger.info(len(data))
+
+        for i, item in enumerate(data):
+            item[self.id_field] = i
+
+        return data