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//! The `logger` module provides a setup function for `env_logger`. Its only function,
//! `setup()` may be called multiple times.
use env_logger;
use std::sync::{Once, ONCE_INIT};
static INIT: Once = ONCE_INIT;
/// Setup function that is only run once, even if called multiple times.
pub fn setup() {
INIT.call_once(|| {
env_logger::Builder::from_default_env()
.default_format_timestamp_nanos(true)
.init();
});
}