Type Alias CSINodeHardware 

pub type CSINodeHardware<'a> = NodeHardware<'a>;

Pre-refactor name for NodeHardware. It served only the central/peripheral pair before the emitter/collector split gave it a second caller, and the rename was the whole change — so this is an alias, not a second type to keep in step.

Aliased Type

pub struct CSINodeHardware<'a> { /* private fields */ }