# Objective
I wanted to pass in a `String` to `DynamicStruct::insert_boxed` but it
took in a &str. That's fine but I also saw that it immediately converted
the `&str` to a `String`. Which is wasteful.
## Solution
I made `DynamicStruct::insert_boxed` take in a `impl Into<Cow<str>>`.
Same for `DynamicStruct::insert`.
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## Changelog
- `DynamicStruct::insert_boxed` and `DynamicStruct::insert` now support
taking in anything that implements `impl Into<Cow<str>>`.
56076b7b0c