https://javadoc.dokku1.parttio.org/in.virit/viritin/2.14.0/org/vaadin/firitin/components/popover/package-summary.html
org.vaadin.firitin.components.popover (Flow Viritin 2.14.0 API)
declaration: package: org.vaadin.firitin.components.popover
vaadincomponentspopover