Decorator that creates a trace span for the decorated async method logic.
using the typescript decorators stage 2.
requires the "experimentalDecorators" compiler option to be true.
It also requires the class to have a 'tracer' property of type Tracer.
Decorator that creates a trace span for the decorated async method logic. using the typescript decorators stage 2. requires the "experimentalDecorators" compiler option to be true. It also requires the class to have a 'tracer' property of type Tracer.