ch.frankel.kaadin.com.vaadin.data.util.IndexedContainer

item	`fun IndexedContainer.item(): Any` `fun IndexedContainer.item(vararg itemId: Any, init: Item.() -> Unit = {}): <ERROR CLASS>` `fun IndexedContainer.item(itemIds: Collection<Any>, init: Item.() -> Unit = {}): <ERROR CLASS>`
property	`fun IndexedContainer.property(propertyId: Any, type: Class<*>, defaultValue: Any): Boolean`