Function bn_log_with_session 

pub fn bn_log_with_session(
    session_id: SessionId,
    logger: &str,
    level: BnLogLevel,
    msg: &str,
)

Send a session-scoped log message to the core.

The SessionId is how you attribute the log to a specific BinaryView. Without passing a session, logs will be shown in the UI globally, which you should not do if you can avoid it.