DeleteDimensionGroupRequest

Deletes a group over the specified range by decrementing the depth of the dimensions in the range. For example, assume the sheet has a depth-1 group over B:E and a depth-2 group over C:D. Deleting a group over D:E leaves the sheet with a depth-1 group over B:D and a depth-2 group over C:C.

{
    "range": {
        "dimension": "DIMENSION_UNSPECIFIED",
        "endIndex": 0,
        "sheetId": 0,
        "startIndex": 0
    }
}