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Detects whether a terminal supports unicode.
This crate is a Rust port mashing together
[@sindresorhus](https://github.com/sindresorhus)'
[`is-unicode-supported`](https://npm.im/is-unicode-supported) and
[@iarna](https://github.com/iarna)'s
[`has-unicode`](https://npm.im/has-unicode) NPM packages.
## Example
```rust
use supports_unicode::Stream;
if supports_unicode::on(Stream::Stdout) {
println!("stdout supports unicode output");
} else {
println!("no unicode, please");
}
```
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