Function reduce

reduce<In, Out>(reducer: (v: In[]) => Out): Link<In[], Out>
Takes an array of values, flattening to a single one using the provided reducer function.
```
// Create a chain that flattens values
const reduce = Chains.reduce(values => Math.max(...values));
// Feed it a single input (an array), get a single output back:
const result = await Chains.single(reduce, [ 1, 2, 3]); // 3
```
Type Parameters
- In
- Out
Parameters
- reducer: (v: In[]) => Out
  Function to reduce array of values to a single value
Returns Link<In[], Out>