{
  "collapseID": "collapseExElement",
  "collapse-panel-header-id": "collapseExElement-header",
  "isLarge": false,
  "hasIcon": false,
  "hasImage": false,
  "messageBody": true,
  "extraPanelBodyClass": "a-msg-body",
  "collapse-panel-content": "This is an example of an expandable panel for the inbox.",
  "collapseHeader": {
    "isElement": true
  }
}