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use crate::deferred_now::DeferredNow; use log::Record; use std::io; /// Writes to a single log output stream. /// /// Boxed instances of `LogWriter` can be used as additional log targets. pub trait LogWriter: Sync + Send { /// Writes out a log line. fn write(&self, now: &mut DeferredNow, record: &Record) -> io::Result<()>; /// Flushes any buffered records. fn flush(&self) -> io::Result<()>; /// Provides the maximum log level that is to be written. fn max_log_level(&self) -> log::LevelFilter; }