nimbus t8n support currentBlobGasUsed ?

[winsvega]

getting this error

FAILED tests/tmp/tmptest_235a37dc_6cb4_47c6_a8c4_2b2984e85373/test_mcopy.py::test_mcopy_on_empty_memory[fork=Cancun-empty_memory-length=1-src=32-dest=32] - Exception: failed to evaluate: Cancun config but missing 'parentBlobGasUsed' in env section

my debug with pyspecs is limited at the moment, but I assume nimbus does not support currentBlobGasUsed proviede in env file instead of parentBlobGasUsed.