A lightweight connectivity check that performs a single, small request to a
stable endpoint with a short timeout. It is primarily used to guard runnable
documentation examples (via roxygen2's @examplesIf) so they are executed
when the API is available but quietly skipped when it is not — avoiding
spurious failures from transient API outages or a missing internet
connection.
Details
This function never throws: it returns FALSE on any error (offline,
timeout, non-success status, ...) and does not retry.
See also
Other API-basics:
trakt_get()
