>     EventuallyConsistentKVS .newKey(key, value) should store a new key/value pair given that the method is called only once for that key
>   ․ EventuallyConsistentKVS .newKey(key, value) should store a new key/value pair given that the method is called only once for that key
>     EventuallyConsistentKVS .retrieve(key) should return a previously-assigned value of the key, or undefined the value has not yet been regiested
>   ․ EventuallyConsistentKVS .retrieve(key) should return a previously-assigned value of the key, or undefined the value has not yet been regiested
>     EventuallyConsistentKVS .modify(key, value) should change the value so that it eventually becomes the given one
>   ․ EventuallyConsistentKVS .modify(key, value) should change the value so that it eventually becomes the given one
217c223
<   107 passing (188ms)
---
>   110 passing (200ms)
<   110 passing (200ms)
---
>   110 passing (271ms)