macro_rules! trace_span {
($name:expr) => { ... };
($name:expr, $($key:ident = $value:expr),*) => { ... };
}Expand description
便捷的宏,用于创建 span
macro_rules! trace_span {
($name:expr) => { ... };
($name:expr, $($key:ident = $value:expr),*) => { ... };
}便捷的宏,用于创建 span