Function polkadot_overseer::dummy::dummy_overseer_builder

pub fn dummy_overseer_builder<Spawner, SupportsParachains>(
    spawner: Spawner,
    supports_parachains: SupportsParachains,
    registry: Option<&Registry>,
) -> Result<InitializedOverseerBuilder<SpawnGlue<Spawner>, SupportsParachains, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem, DummySubsystem>, SubsystemError>
where
    SpawnGlue<Spawner>: Spawner + 'static,
    SupportsParachains: HeadSupportsParachains,

Create an overseer with all subsystem being Sub.

Preferred way of initializing a dummy overseer for subsystem tests.