error: generic operations are not supported
 --> tests/ui/generic_method.rs:5:12
  |
5 |     fn load<T>(&self, value: T) -> OperationResult<String>;
  |            ^^^

warning: unused import: `OperationResult`
 --> tests/ui/generic_method.rs:1:21
  |
1 | use wip_interface::{OperationResult, interface};
  |                     ^^^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default