From package "@types/kendo-ui": "2020.1.0" i found;
class Connection extends Observable {
options: ConnectionOptions;
dataItem: any;
from: kendo.dataviz.diagram.Shape;
sourceConnector: kendo.dataviz.diagram.Connector;
targetConnector: kendo.dataviz.diagram.Connector;
to: kendo.dataviz.diagram.Shape;
constructor(options?: ConnectionOptions);
The constructor is not correct, it has to be like all example you propose: https://docs.telerik.com/kendo-ui/api/javascript/dataviz/ui/diagram/methods/addconnection
Please correct typings as soon as possible, it drives me in a use that doesn't works