public ListingFetcher(IJsonApiGetRequest jsonApiGetRequest, IAgentCollectionResultValidator agentCollectionResultValidator,
                       IHttpResponseMessageJsonParser httpResponseMessageJsonParser, string apiKey)
 {
     _jsonApiGetRequest = jsonApiGetRequest;
     _agentCollectionResultValidator = agentCollectionResultValidator;
     _httpResponseMessageJsonParser  = httpResponseMessageJsonParser;
     _apiKey = apiKey;
 }
 public void Setup()
 {
     _agentCollectionResultValidator = new AgentCollectionResultValidator();
 }