Function Rpc

Mark a method as a unary RPC.

Rpc(
    options?: RpcOptions,
): <T extends (...args: any[]) => any>(
    target: T,
    _context: ClassMethodDecoratorContext,
) => T
Mark a method as a unary RPC (single request, single response).
Parameters
- Optionaloptions: RpcOptions
Returns <T extends (...args: any[]) => any>(
target: T,
_context: ClassMethodDecoratorContext,
) => T
Example
```
@Rpc({ timeout: 30, idempotent: true })
async getUser(req: GetUserRequest): Promise<User> { ... }
```