Creates a communications group

curl --request POST \
  --url https://api.rootly.com/v1/communications/groups \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "communications-groups",
    "attributes": {
      "name": "<string>",
      "description": "<string>",
      "communication_type_id": "<string>",
      "is_private": true,
      "condition_type": "any",
      "sms_channel": true,
      "email_channel": true,
      "slack_channel_ids": [
        "<string>"
      ],
      "communication_group_conditions_attributes": [
        {
          "property_type": "service",
          "service_ids": [
            "<string>"
          ],
          "severity_ids": [
            "<string>"
          ],
          "functionality_ids": [
            "<string>"
          ],
          "group_ids": [
            "<string>"
          ],
          "incident_type_ids": [
            "<string>"
          ]
        }
      ],
      "communication_group_members_attributes": [
        {
          "user_id": 123
        }
      ],
      "communication_external_group_members_attributes": [
        {
          "name": "<string>",
          "email": "<string>",
          "phone_number": "<string>"
        }
      ]
    }
  }
}'

{
  "data": {
    "id": "e2ad7baa-447e-4593-a72b-e9080bcc4bf7",
    "type": "communications-groups",
    "attributes": {
      "name": "Engineering Team",
      "slug": "engineering-team",
      "description": "Engineering team communications group",
      "is_private": false,
      "condition_type": "any",
      "email_channel": true,
      "sms_channel": false,
      "communication_type_id": "c06b4ded-02d0-4e45-92fb-5d474f2dda32",
      "slack_channel_ids": [
        "9021573a-a6ec-5975-a26d-0ffa8c217597"
      ],
      "created_at": "2025-08-18T10:33:14.165-07:00",
      "updated_at": "2025-08-18T10:33:14.165-07:00",
      "team_id": 59,
      "communication_group_members": [
        {
          "id": "9c6c5596-d61b-4b4f-800c-6a63030eae12",
          "user_id": 64,
          "name": "Vincent Nicolas",
          "email": "marcelo@runolfsson.example"
        }
      ],
      "communication_external_group_members": [
        {
          "id": "4deb77f6-1b95-40c8-a44c-fd72f97e1418",
          "name": "External member",
          "email": "external@example.com",
          "phone_number": "+911234567890"
        }
      ],
      "communication_group_conditions": [
        {
          "id": "90e52389-37d8-4a6d-821d-b0e3b6633fa6",
          "condition": "is",
          "property_type": "service",
          "properties": [
            {
              "id": "7788d882-0b85-4d8d-986d-34cc29205fc8",
              "name": "Laudantium et aliquid quo."
            }
          ]
        }
      ]
    }
  }
}