Macro traceback 

macro_rules! traceback {
    () => { ... };
    ($arg1:expr, $arg2:expr) => { ... };
}

A macro for generating a Traceback of logs, optionally filtered by log level and channel.

To only specify a LogLevel, use the traceback_level! macro.

To only specify a channel, use the traceback_channel! macro.

Examples

Traceback with default values:

use breadcrumbs::traceback;
let traceback = traceback!();

Traceback with a custom log level and channel:

use breadcrumbs::{traceback, LogLevel};
let traceback = traceback!(LogLevel::Warn, "test_channel");