As seen in hashbrown:
#[cfg(feature = "raw")]
/// Experimental and unsafe `RawTable` API. This module is only available if the
/// `raw` feature is enabled.
pub mod raw {
// The RawTable API is still experimental and is not properly documented yet.
#[allow(missing_docs)]
#[path = "mod.rs"]
mod inner;
pub use inner::*;
#[cfg(feature = "rayon")]
pub mod rayon {
pub use crate::external_trait_impls::rayon::raw::*;
}
}