@syncfusion/ej2-angular-buttons/schematics/collection.json

A package of feature-rich Essential JS 2 components such as Button, CheckBox, RadioButton and Switch. for Angular

{
                "$schema": "./node_modules/@angular-devkit/schematics/collection-schema.json",
                "schematics": {
                  "ng-add": {
                    "description": "Adds Essential JS 2 specific Angular package to an application",
                    "factory": "./ng-add",
                    "schema": "./ng-add/schema.json"
                  }
                }
              }