//! To declare an init macro/function you just return an [`impl PinInit<T, E>`]:
//!
//! ```rust
-//! # #![allow(clippy::disallowed_names)]
//! # use kernel::{sync::Mutex, new_mutex, init::PinInit, try_pin_init};
//! #[pin_data]
//! struct DriverData {
/// The syntax is almost identical to that of a normal `struct` initializer:
///
/// ```rust
-/// # #![allow(clippy::disallowed_names)]
/// # use kernel::{init, pin_init, macros::pin_data, init::*};
/// # use core::pin::Pin;
/// #[pin_data]
/// To create an initializer function, simply declare it like this:
///
/// ```rust
-/// # #![allow(clippy::disallowed_names)]
/// # use kernel::{init, pin_init, init::*};
/// # use core::pin::Pin;
/// # #[pin_data]
/// They can also easily embed it into their own `struct`s:
///
/// ```rust
-/// # #![allow(clippy::disallowed_names)]
/// # use kernel::{init, pin_init, macros::pin_data, init::*};
/// # use core::pin::Pin;
/// # #[pin_data]