### Refactors

* ♻ Remove `media_type` from `ORJSONResponse` as it's inherited from the parent class. PR [#5805](https://github.com/tiangolo/fastapi/pull/5805) by [@Kludex](https://github.com/Kludex).
* ♻ Instantiate `HTTPException` only when needed, optimization refactor. PR [#5356](https://github.com/tiangolo/fastapi/pull/5356) by [@pawamoy](https://github.com/pawamoy).

### Docs

	<li>Two channel types are identical if they have identical element types and
	    the same direction.</li>

	<li>Two <a href="#Instantiations">instantiated</a> types are identical if
	    their defined types and all type arguments are identical.
	</li>
</ul>

<p>
Given the declarations
</p>

<pre>
type (
	A0 = []string

		ctx:          ctx,
		killCh:       make(chan struct{}),
		lastDayStats: make(map[string]*lastDayTierStats),
	}
}

// Init initializes t with given objAPI and instantiates the configured number
// of transition workers.
func (t *transitionState) Init(objAPI ObjectLayer) {
	n := globalAPIConfig.getTransitionWorkers()
	// Prefer ilm.transition_workers over now deprecated api.transition_workers

	initAllSubsystems(ctx)

	return newErasureServerPools(ctx, endpointServerPools)
}

// initObjectLayer - Instantiates object layer and returns it.
func initObjectLayer(ctx context.Context, endpointServerPools EndpointServerPools) (ObjectLayer, []StorageAPI, error) {
	objLayer, err := newTestObjectLayer(ctx, endpointServerPools)