*   CPU
    *   Fix an issue w/ dynamic weights and `Conv2D` on x86.
    *   Add a runtime Android flag for enabling `XNNPACK` for optimized CPU
        performance.
    *   Add a runtime iOS flag for enabling `XNNPACK` for optimized CPU
        performance.
    *   Add a compiler flag to enable building a TFLite library that applies
        `XNNPACK` delegate automatically when the model has a `fp32` operation.

			log.Errorf("Failed to start up UDS Log Server: %v", err)
			return
		}

		// Creates a basic health endpoint server that reports health status
		// based on atomic flag, as set by installer
		// TODO nodeagent watch server should affect this too, and drop atomic flag
		installDaemonReady, watchServerReady := nodeagent.StartHealthServer()

		if cfg.InstallConfig.AmbientEnabled {
			// Start ambient controller

StringBuffer); public static StringBuffer format(long, StringBuffer); public static StringBuffer format(long, int, StringBuffer); private static void format2(long, int, StringBuffer); public static StringBuffer format(float, StringBuffer); public static StringBuffer format(float, float, StringBuffer); public static StringBuffer format(double, StringBuffer); public static StringBuffer format(double, int, StringBuffer); public static StringBuffer format(double, double, StringBuffer); private static StringBuffer...

			if err != nil {
				return fmt.Errorf("failed to create Kubernetes client: %v", err)
			}
			ns := ctx.NamespaceOrDefault(ctx.Namespace())

			// Delete all waypoints if the --all flag is set
			if deleteAll {
				return deleteWaypoints(cmd, kubeClient, ns, nil)
			}

			// Delete waypoints by names if provided
			return deleteWaypoints(cmd, kubeClient, ns, args)
		},
	}

	if countErrs(errs, errXLBackend) == len(errs) {
		return errXLBackend
	}

	return nil
}

// A single function to write certain errors to be fatal
// or informative based on the `exit` flag, please look
// at each implementation of error for added hints.
//
// FIXME: This is an unusual function but serves its purpose for
// now, need to revisit the overall erroring structure here.
// Do not like it :-(

from pydantic import BaseModel

class Item(BaseModel):
    name: str
    price: Optional[float] = None
    owner_ids: Optional[List[int]] = None

app = FastAPI()

@app.get("/items/invalidnone", response_model=Item)
def get_invalid_none():
    if flag:
        return {"name": "foo"}
    # if flag is False, at this point the function will implicitly return None
```