Function Inject

Inject(...tokens: readonly InjectToken[]): SetuClassDecorator
Declares the constructor injection tokens for a class, one per constructor argument in argument order. The DecoratorPlugin resolves each token (from the DI container or the service registry) and passes the results to the constructor.

A token is always required: type-inferred injection needs emitDecoratorMetadata, which Deno does not support, so parameter types cannot be read.

Wrap a token in Optional to let the argument receive undefined when the token has no provider.
Parameters
- ...tokens: readonly InjectToken[]
  One entry per constructor argument, in argument order
Returns SetuClassDecorator
A class decorator
Example
```
@Injectable()
@Inject(CAPABILITIES.DATABASE, Optional(CAPABILITIES.CACHE))
class UserRepository {
  constructor(private db: Db, private cache?: ICacheService) {}
}
```
Since
0.1.0
- Defined in packages/decorator-plugin/src/decorators/injection.ts:92