Originally in an example it reads as follows:
```rust
fn inverse<T>() -> T
// this is using ConvertTo as if it were "ConvertFrom<i32>"
where i32: ConvertTo<T> {
42.convert()
}
```
There was no mention of `ConvertFrom` elsewhere in the page other than in this comment. Is this supposed to be `ConvertTo<i64>` ?
I'm confused by this example.
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