Remove other resources associated with an object.
Remove other resources associated with an object prior to its removal by the tracking system. This S3 generic function exists so that methods can be specified for cleaning up particular objects.
The R object that will be removed.
The name of the R object that will be removed.
The environment in which the object exists (i.e., the tracked environment, not the tracking environment.)
track.preremove() method should clean up other resources
(e.g., files) associated with
track.preremove() and then will removes
from the system after the call to
Return values are ignored.
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