MakeHTTPRequest makes HTTP request to given `url` with `headers` and in case of error it will retry request `retry` amount of times.

NewHTTPWorkerPool create new worker pool for queries.

HTTPRequest default HTTP Request structure.

HTTPResponse default query engine response.

HTTPWorkerPool structure that contain WokerPool HTTP implementation It implements worker pool that will do real HTTP calls to resources using `query.MakeHTTPRequest`.

MockWorkerPool mock worker pool implementation for tests.

WorkerPool interface for any Query Engine worker pools.