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description: >
Empty interface to indicate that the associated `Software.Version` should
prevent a state transition of the associated managed element while the
`Software.Version` is in `Activating` state.
The specific state transition(s) to prevent are left to the implementation.
A typical use of this would be to prevent (delay) the power-on of a
managed host while the BIOS is being updated. The managed host, via
systemd transitions, might start the power-on sequence and then wait for
any object with this `ActivationBlocksTransition` interface to no longer be
in `Activating` state. Causal ordering of dbus operations can prove that
no update is currently being performed and the power-on sequence may safely
continue.
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