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unbundle issue with XGBoost models #81
Description
When using the unbundle function on a bundled XGBoost model, even after the 0.1.3 update, there is an error associated with the argument as_booster which has become deprecated.
Below is an example of the output received when attempting to unbundle a model after loading the bundled model object:
Load the example mark model that previously was trained on the small example data
file_path <- system.file("extdata", "example_mark_model.rds", package = "ldmppr")
mark_model <- bundle::unbundle(readRDS(file_path))
Error in xgboost::xgb.load.raw(object, as_booster = TRUE) :
unused argument (as_booster = TRUE)
Calls: ... -> unbundle -> unbundle.bundle ->
Execution halted
From what I can tell, just removing the as_booster argument should address the issue in the unbundle function for XGBoost objects.
Activity
juliasilge commentedon Dec 23, 2025
I don't think you should be able to unbundle an arbitrary model in this way from data stored in a package. (Unless it happened to be stored as a bundled object to start with?)
Can you share a more straightforward example of the kind of problem you are seeing? Something along the lines of first bundling:
Created on 2025-12-23 with reprex v2.1.1
And then unbundling:
Created on 2025-12-23 with reprex v2.1.1
That example was using bundle 0.1.3 and xgboost 3.1.2.1.
mark-burdon commentedon Mar 13, 2026
juliasilge commentedon Mar 17, 2026
mark-burdon commentedon Mar 18, 2026