Const
The source code file name that identifies the code unit as uniquely as possible (preferably an absolute file path).
Use ATTR_CODE_FILEPATH in [incubating entry-point](https://github.com/open-telemetry/opentelemetry-js/blob/main/semantic-conventions/README.md#unstable-semconv).
The source code file name that identifies the code unit as uniquely as possible (preferably an absolute file path).