Update README.md

README.md

@@ -48,22 +48,15 @@ For more information about the dataset, visit the original dataset repo: [Cohere
 the data was extracted using this simple code:
 
 ```python
-# Helper Function.
-def drop_keys(x,):
-    keys = ["language_code", "user_id"]
-    for key in keys:
-        x.pop(key)
-    return x
-
 # Train split.
 aya_train = datasets.load_dataset("CohereForAI/aya_dataset", split="train")
 arb_train = aya_train.filter(lambda x: x["language_code"] == "arb")
-arb_train = arb_train.map(drop_keys)
+arb_train = arb_train.remove_columns(["language_code", "user_id"])
 
 # Test split.
 aya_test = datasets.load_dataset("CohereForAI/aya_dataset", split="test")
 arb_test = aya_test.filter(lambda x: x["language_code"] == "arb")
-arb_test = arb_test.map(drop_keys)
+arb_test = arb_test.remove_columns(["language_code", "user_id"])
 
 # create dataset dictionary.
 arabic_aya = datasets.DatasetDict({