curl --request GET \
  --url http://api.attention.tech/v2/scim/Groups \
  --header 'Authorization: <api-key>'

{
  "totalResults": 2,
  "startIndex": 1,
  "itemsPerPage": 2,
  "schemas": [
    "urn:ietf:params:scim:schemas:core:2.0:Group"
  ],
  "Resources": [
    {
      "schemas": [
        "urn:ietf:params:scim:schemas:core:2.0:Group",
        "urn:okta:custom:group:1.0"
      ],
      "displayName": "firstGroup",
      "id": "1001",
      "members": [
        {
          "value": "101",
          "display": "okta"
        }
      ],
      "urn:okta:custom:group:1.0": {
        "description": "This is the first group"
      }
    },
    {
      "schemas": [
        "urn:ietf:params:scim:schemas:core:2.0:Group"
      ],
      "displayName": "secondGroup",
      "id": "1002",
      "members": [
        {
          "value": "101",
          "display": "okta"
        },
        {
          "value": "102",
          "display": "admin"
        }
      ]
    }
  ]
}