get_reporter() and set_reporter() access and modify the current "active"
reporter. Generally, these functions should not be called directly; instead
use with_reporter() to temporarily change, then reset, the active reporter.
set_reporter(reporter)get_reporter()
with_reporter(reporter, code, start_end_reporter = TRUE)
with_reporter() invisible returns the reporter active when code
was evaluated.
Reporter to use to summarise output. Can be supplied
as a string (e.g. "summary") or as an R6 object
(e.g. SummaryReporter$new()).
See Reporter for more details and a list of built-in reporters.
Code to execute.
Should the reporters start_reporter() and
end_reporter() methods be called? For expert use only.