Function Service

Mark a class as an Aster RPC service.

Service(
    options: ServiceOptions,
): <T extends new (...args: any[]) => any>(
    target: T,
    _context: ClassDecoratorContext,
) => T
Decorate a class as an Aster RPC service.
Parameters
- options: ServiceOptions
Returns <T extends new (...args: any[]) => any>(
target: T,
_context: ClassDecoratorContext,
) => T
Example
```
@Service({ name: "Echo", version: 1 })
class EchoService { ... }
```