`ServerContext`'s request() and response() methods are not accessible.

[LoonyRules]

The ServerContext class has 2 methods:

• <T> T request() { ... }
• <T> T response() { ... }
  but they are not accessible outside of its package, meaning the end user cannot use them. These need to be public methods instead.

[rob-bygrave]

not accessible outside of its package

This could be a nice little change to do. Do you want to submit a PR?