Redux Toolkit popularity is growing every month. What exactly helps developers to write code faster, easier, more clearly? One of the helpers is `createSlice` function. `createSlice` takes an object of reducer functions, a slice name, and an initial state value and lets us auto-generate action types and action creators, based on the names of the reducer functions that we supply. It also helps you organize all of your Redux-related logic for a given slice into a single file.