List account connections

{
  "items": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "user_id": "550e8400-e29b-41d4-a716-446655440000",
      "label": "My Account Connection",
      "description": "This is a description",
      "type": "account_connection_twilio",
      "credentials": {
        "twilio_account_sid": "AC1234567890",
        "twilio_auth_token": "1234567890"
      },
      "steering_pool": [
        "+1234567890"
      ],
      "account_supports_any_caller_id": false
    }
  ],
  "page": 123,
  "size": 123,
  "has_more": true,
  "total": 123,
  "total_is_estimated": true
}