This procedural macro crate provides a way to construct and annotate tuple types like arrays in Rust.
```rust
!#[feature(proc_macro_hygiene)] // required for expansion to expressions
use fast_tuple::tuple;
fn main() {
}
```
This is a nigthly-only crate at the moment, unless you only use it for annotate types,this macro is also **no_std** only when debug assertions are disabled.