Function exemptOperationOf

exemptOperationOf(method: string, pathOrUrl: string): string | undefined
Returns the key of IDEMPOTENT_EXEMPT_OPERATIONS a request matches, if any.
Parameters
- method: string
  The HTTP method.
- pathOrUrl: string
  The request URL, its path or a path template.
Returns string | undefined
The key METHOD /path/template, or undefined.
Example
```
exemptOperationOf("POST", "https://example.com/api/v1/runs/r1/start");
// "POST /runs/{run_id}/start"
```