CreateGroupPostRequest(CreateGroupPostRequest)

{
    "imageId": "file_ce35d830-e20a-4df0-a6d4-5aaef4508044",
    "roleIds": [
        "grol_459d3911-f672-44bc-b84d-e54ffe7960fe"
    ],
    "visibility": "group",
    "title": "Event is starting soon!",
    "text": "Come join us for the event!",
    "sendNotification": false
}