Not compatible with Botkit 4

[kvarela]

I've tried to use this with Botkit 4, but it fails with error like this:

Experienced an error inside the turn handler TypeError: this.storage.read is not a function
    at Promise.resolve.then (/Users/home/swirl/swirl-app/node_modules/botbuilder-core/src/botState.ts:87:37)
    at processTicksAndRejections (internal/process/next_tick.js:81:5)
(node:43349) UnhandledPromiseRejectionWarning: TypeError: this.storage.read is not a function
    at Promise.resolve.then (/Users/home/swirl/swirl-app/node_modules/botbuilder-core/src/botState.ts:87:37)
    at processTicksAndRejections (internal/process/next_tick.js:81:5)

is this to be expected? Any plans to update this library?

[bfoura]

I think that you used this library, and its no longer maintained, or at least not compatible with BotKit 4 interfaces