An optional version specification. If supplied,
ensures that RStudio is at least that version.
child_ok
Boolean; check if the current R process is a child
process of the main RStudio session? This can be useful for e.g. RStudio
Jobs, where you'd like to communicate back with the main R session from
a child process through rstudioapi.
Value
isAvailable a boolean; verifyAvailable an error message
if RStudio is not running