Add as_iterable_dataset() method to DatasetBuilder for streaming from cached Arrow files
#7628
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This was referenced Jun 19, 2025
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This PR implements
builder.as_iterable_dataset(split=...)as discussed in #5481.It allows users to load an
IterableDatasetdirectly from cached Arrow files (using ArrowReader and ArrowExamplesIterable), without loading the full dataset into memory.This is useful for large-scale training scenarios where memory is constrained. A test has also been added in
test_builder.py.Related to: #5481