UdisksBus
What the UDisks source asks of D-Bus, so a test gives it fixed properties with no D-Bus (§MFT-1). An addition to the contract.
In the namespace platform::hardware. Declared in src/libs/libplatform/platform/Hardware.hpp.
Detailed description
The object path of a UDisks drive holds the drive's serial number. The source uses a path only as an opaque handle: it never shows, logs or keeps it. Properties are asked one by one by name, never with GetAll, because GetAll also returns `SubsystemNQN`, which holds the serial.