- Updated charset usage from string literal "UTF_8" to standard `Charsets.UTF_8`. - Consolidated the implementation of the `getDelayTestUrl()` function. - Improved code readability and consistency with these changes.
- Updated charset usage from string literal "UTF_8" to standard `Charsets.UTF_8`. - Consolidated the implementation of the `getDelayTestUrl()` function. - Improved code readability and consistency with these changes.