How to get power outlet from device using API?

[llamafilm]

Given a device ID, I want to find the PDU and power outlet its power port is connected to. It seems like REST API would require several calls to get this, so I'm trying to do it using a single GraphQL call. Is this possible? Below is the closest thing I found:

{
  device_list(id: "69") {
    name
    description
    powerports {
      cable {
        id
        terminations {
          id
          cable_end
        }
        a_terminations {
          __typename
        }
      }
      cable_end
    }
  }
}

And the result:

{
  "data": {
    "device_list": [
      {
        "name": "DSP002",
        "description": "CP850 (proj)",
        "powerports": [
          {
            "cable": {
              "id": "36",
              "terminations": [
                {
                  "id": "72",
                  "cable_end": "A"
                },
                {
                  "id": "73",
                  "cable_end": "B"
                }
              ],
              "a_terminations": [
                {
                  "__typename": "PowerOutletType"
                }
              ]
            },
            "cable_end": "B"
          }
        ]
      }
    ]
  }
}

I'm not sure how to get more detail from the terminations part.

[llamafilm]

This can be done using inline fragment for connected_endpoints

{
  device_list(filters:{id: "69"}) {
    powerports {
      connected_endpoints{
        ... on PowerOutletType{
          display
          device{description}
          name
        }
      }
    }
  }
}