- #[cfg(feature = "hashbrown")]
- extern crate hashbrown;
-
- pub use alloc::{vec, vec::Vec, string::String, collections::VecDeque, boxed::Box};
- #[cfg(not(feature = "hashbrown"))]
- pub use std::collections::{HashMap, HashSet, hash_map};
- #[cfg(feature = "hashbrown")]
- pub use self::hashbrown::{HashMap, HashSet, hash_map};