uproot.compression.hook_before_block
====================================

Defined in `uproot.compression <https://github.com/scikit-hep/uproot4/blob//src/uproot/compression.py>`__ on `line 465 <https://github.com/scikit-hep/uproot4/blob//src/uproot/compression.py#L465>`__.

.. autofunction:: uproot.compression.hook_before_block
