restore.point.browser: Examing a previously stored restore point by invoking the...
In restorepoint: Debugging with Restore Points

The function is mainly for internal use by restore.point.

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restore.point.browser(name, was.forced = FALSE,
  message.text = paste("restore point", name, ", press ESC to return."),
  deep.copy = get.restore.point.options()$deep.copy)

`name`	name under which the variables have been stored
`was.forced`	flag whether storage of objects was forced. If FALSE (default) a warning is shown if restore.objects is called and is.storing()==FALSE, since probably no objects have been stored.
`message.text`	initial shown message
`deep.copy`	when storing or restoring tries to make a deep copy of R objects that are by default copied by reference, like environments. Setting deep.copy = FALSE can substantially speed up restore.point, however.