Arbitrary properties.
Optional Readonlyhighlight-The time in milliseconds until the popup is hidden (optional). Same property as HighlightAction.
ReadonlyitemsAn array of objects with a geometry. Only first is used.
Optional ReadonlypopupA popupTemplate to use (optional).
Optional ReadonlysourceA store which is used to find the popupTemplate (optional).
Options accepted by the OpenPopupAction. A popup will be opened for the specified item.