pub fn init_custom_trace_subscriber(
trace_out_file_path: Option<String>,
) -> Result<External<RefCell<Option<FlushGuard>>>>Expand description
Initialize tracing subscriber to emit traces. This configures subscribers for Trace Event Format https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview.