An option to reduce single output returns

## Issue Type

- [x] Feature

## Description

Outputs are currently in the object format:

```
await someMethod() : {
   0: ...,
   1: ...,
}
```

For single output returns we might want to have an option `reduceOutputReturns` so that outputs are just the single value output. This is an opinion, but one many people use all the time.

```
await someMethod() : ....
```