Module missing after installing sygnalyze

[JulienLecoq]

Here is the error I'm getting after installing sygnalyze via npm i sygnalyze

[ng] ✘ [ERROR] TS2307: Cannot find module 'ts-essentials' or its corresponding type declarations. [plugin angular-compiler]
[ng] 
[ng]     node_modules/sygnalyze/sygnals/sygnal.d.ts:2:29:
[ng]       2 │ import { DeepReadonly } from "ts-essentials";