Function withTrace

withTrace<T>(fn: (span: Span) => T, opts?: WithTraceOptions): T
Wraps a function with OpenTelemetry tracing. Automatically captures caller info and sets code.* attributes.

If the callback returns a Promise, the span ends after the promise resolves/rejects. If the callback is synchronous, the span ends immediately after execution.
Type Parameters
- T
Parameters
- fn: (span: Span) => T
- Optionalopts: WithTraceOptions
Returns T
Example
```
// Basic usage
withTrace((span) => {
  logger.info('doing something');
  return result;
});
```
Example
```
// With parent from traceparent header
const traceparent = request.headers.get('traceparent');
withTrace((span) => {
  logger.info('handling request');
}, { parent: traceparent, name: 'handleRequest' });
```
- Defined in trace.ts:60