//! Build and encode a standard meter-readout request without allocation.
//!
//! The example creates a `REQ-UD2` short frame for slave address 1 and writes
//! it into a fixed-size caller-owned buffer.
//!
//! Run with:
//!
//! ```sh
//! cargo run -p meterbus-wired-datalink --example request_data_no_alloc
//! ```
use ;