In Angular 2 (in WebStorm obviously) I am trying to use the `@ViewChildren` decorator to count the child instances of certain type.
@ViewChildren(StepComponent) steps: QueryList<StepComponent>;
Somehow the QueryList type behaves weird in the editor. It is marked red as unrecognized, when I hover it - a blueish baloon suggests query_list.d.ts with option-enter keystroke - but when I type it nothing really happens. How should I resolve this thing?