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Joris Van den Bossche authored and GitHub committed 046e7cbec4b
GH-44063: [Python] Deprecate the no longer used serialize/deserialize Pyarrow C++ functions (#44064) ### Rationale for this change We want to remove this part of the code (since we no longer use it ourselves, see https://github.com/apache/arrow/issues/43587), and before doing that first deprecating them for two releases. * GitHub Issue: #44063 Authored-by: Joris Van den Bossche <jorisvandenbossche@gmail.com> Signed-off-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>