REST API v2: How to know who is checked out file

[Anonymous]

Hi,

We are trying to know by whom the file was checked out.

By this query: 

https://[tenant]/api/v2/workspaces/8/items/4156/files

  for item or this for file

https://[tenant]/api/v2/workspaces/8/items/4156/files/1451

 we got almost identical answer

{
  "id" : 1451,
  "url" : "https://[tenant]/api/v2/workspaces/8/items/4156/files/1451",
  "itemId" : 4156,
  "workspaceId" : 8,
  "fileName" : "food_processor.sldasm",
  "title" : "food_processor.sldasm",
  "description" : "attachment",
  "size" : 650240,
  "version" : 1,
  "type" : {
    "id" : "other",
    "type" : "Miscellaneous File Type",
    "description" : null,
    "viewable" : true,
    "extension" : null
  },
  "status" : "CHECKEDOUT"
}

 Here you can see that file is checked out. But we do not know who is locked it.

Is i tpossible to get user id or user login?

Thank you.