feat: add bpd.read_arrow to convert an Arrow object into a bigframes DataFrame
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Adds `read_arrow` methods to `bigframes.session.Session` and `bigframes.pandas.read_arrow` for creating BigQuery DataFrames DataFrames from PyArrow Tables. The implementation refactors existing logic from `bigframes.session._io.bigquery.read_gbq_query` for converting Arrow data into BigFrames DataFrames. Includes: - New file `bigframes/session/_io/arrow.py` with the core conversion logic. - `read_arrow(pa.Table) -> bpd.DataFrame` in `Session` class. - `read_arrow(pa.Table) -> bpd.DataFrame` in `pandas` module. - Unit and system tests for the new functionality. - Docstrings for new methods/functions. Note: Unit tests for direct DataFrame operations (shape, to_pandas) on the result of read_arrow are currently failing due to the complexity of mocking the session and executor for LocalDataNode interactions. System tests are recommended for full end-to-end validation.
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Genesis929
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Jun 26, 2025
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Fixes #735 🦕