Properly handle d3 Typescript types

When I install d3 Typescript typings through npm install @typings/d3 IntelliJ seems to not recognize the syntax that is used inside those typings. For example, see this screenshot of the index.d.ts:

However, when I in typescript just import d3, the typescript compiler (which is run by my Angular-cli setup) figures everything out just fine. IntelliJ is however unable to autocomplete the d3 types, for the below line it says 'Unresolved variable Primitive'.

For other types (eg @types/node) it works just fine, but they use different syntax in their type definitions (declare module, interface, etc).

Does anyone know if I am missing some plugin or that something else is wrong? I ran out of ideas to fix this.

import * as d3 from 'd3';
let d: d3.Primitive = 'hello';