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In this example, we are using addInstance() which will instantiate the indicated class and handle dependency resolution

{footnote}Be careful with this, because in some cases, resolving dependencies of the override class can require checking against the ServiceOverrides service, and you'll get a runtime exception about ServiceOverrides requiring itself!{footnote}

Sometimes you'll want to define the override as a service of its own: this is useful if you want to inject a Logger specific to the service, or if the overriding implementation needs a service configuration:

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Note that the object passed in as delegate may be the core service implementation, or it may be some other interceptor from some other decorator for the same service.

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