import GeoportalZoom from "gpf-ext-ol/controls/GeoportalZoom"
ou
import { GeoportalZoom } from "gpf-ext-ol"

Events

zoom:in

Controls/Zoom/GeoportalZoom.js, line 100

event triggered on zoom in

zoom:out

Controls/Zoom/GeoportalZoom.js, line 124

event triggered on zoom out