Function setMeshAttributes

setMeshAttributes(span: SpanContext | SpanLike, attrs: MeshSpanAttributes): void
Set mesh.* attributes on any span-like object in a single call.

Iterates over the provided attrs object and calls setAttribute for each key that is defined (not undefined). Keys mapped to undefined are silently skipped — this avoids setting literal "undefined" strings as attribute values.

Works with both the lightweight SpanContext tracer and the full OTel Span type from @opentelemetry/api.
Parameters
- span: SpanContext | SpanLike
  Any object with a setAttribute method.
- attrs: MeshSpanAttributes
  Partial set of MeshSpanAttributes to apply.
Returns void
Example
```
setMeshAttributes(span, {
  agentId:  'did:mesh:agent-1',
  jobId:    '550e8400-e29b-41d4-a716-446655440000',
  jobState: 'running',
});
```
- Defined in packages/core/src/observability/mesh-span-attributes.ts:164