//! Non-Windows stub. Returns `Ok(None)` so the type can appear portably.
use crate::source::SourceKind;
use crate::sources::stub_macros::unit_stub;
unit_stub!(
/// Windows `MachineGuid` registry source (no-op on non-Windows targets).
WindowsMachineGuid,
SourceKind::WindowsMachineGuid
);