Function parseRetryAfter

parseRetryAfter(retryAfter: string | undefined): number | undefined
Parses Retry-After header value
Parameters
- retryAfter: string | undefined
  The Retry-After header value (either seconds or HTTP date)
Returns number | undefined
Delay in seconds, or undefined if invalid
Example
```
const delay = parseRetryAfter('120'); // 120
```
- Defined in src/auth/utils.ts:71