pub fn init(verbose: bool)Expand description
Install the process-wide subscriber: fmt → stderr at info (debug when
verbose), plus the empty reloadable OTLP slot.
Callable any number of times without panicking; the first global
subscriber and the first parked handle win. main calls it exactly once,
so in the real process the two are the same subscriber - the losing-race
cases exist only inside the test binary, where other tests own the global
slot.