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loaders.py

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+from .stream import MultiStream
+from .operator import SourceOperator
+
+from typing import Optional, Union, Sequence, Mapping
+from datasets import load_dataset as hf_load_dataset
+
+
+class Loader(SourceOperator):
+    pass
+
+
+class LoadHF(Loader):
+    path: str
+    name: Optional[str] = None
+    data_dir: Optional[str] = None
+    data_files: Optional[Union[str, Sequence[str], Mapping[str, Union[str, Sequence[str]]]]] = None
+    cached = False
+
+    def process(self):
+        dataset = hf_load_dataset(
+            self.path, name=self.name, data_dir=self.data_dir, data_files=self.data_files, streaming=True
+        )
+
+        return MultiStream.from_iterables(dataset)