Module wrapper 

Traits

IntoInner

IntoInner is typically used for basic structures that wrap a single value.

RawWrapper

A RawWrapper is the base trait defining all so-called “wrapper” types.

Wrapper

The Wrapper trait is used to establish a common interface for all simplemented structures that “wrap” a single value. Essentially, any type capable of implementing #[repr(transparent)] can be considered a wrapper.