**What**
Allow a step to not define an expected input, previously even if no input was expected, an object was always expected to be passed to the stepFunction inside the workflow composition. Now
```ts
const stepWithoutArgs = createStep("step1", () => {
return new StepResponse("string")
})
const stepWithoutExepectedInput = createStep("step2", (_: {}, context) => {
console.log("input", _) // {}
return new StepResponse("string")
})
const workflow = createWorkflow("workflow1", () => {
stepWithoutArgs()
return stepWithoutExepectedInput()
})
workflow()
.run()
.then((res) => {
console.log(res.result) // string
})
```
