Change Details

``` This removes boilerplate code in the subclasses which otherwise only differ by the result type. ``` Completes backport 3/3 of core PR17399: https://github.com/bitcoin/bitcoin/pull/17399/commits/10efc0487c442bccb0e4a9ac29452af1592a3cf2 Depends on D8327.

``` This removes boilerplate code in the subclasses which otherwise only differ by the result type. ``` Completes backport 3/3 of core [[https://github.com/bitcoin/bitcoin/pull/17399 | PR17399]]: https://github.com/bitcoin/bitcoin/pull/17399/commits/10efc0487c442bccb0e4a9ac29452af1592a3cf2 Depends on D8327.

``` This removes boilerplate code in the subclasses which otherwise only differ by the result type. ``` Completes backport 3/3 of core [[https://github.com/bitcoin/bitcoin/pull/17399 | PR17399:]]: https://github.com/bitcoin/bitcoin/pull/17399/commits/10efc0487c442bccb0e4a9ac29452af1592a3cf2 Depends on D8327.