def get(request_path, klass)
      response = session.send_request('GET', path + request_path)
      data = response.fetch(klass.tag)
      resource = klass.new(data.merge(parent: self))
      resource.assign_errors(response)
      resource
    end
def get(request_path, klass)
      response = session.send_request('GET', path + request_path)
      data = response.fetch(klass.tag)
      resource = klass.new(data.merge(parent: self))
      resource.assign_errors(response)
      resource
    end
Fetch and instantiate a single resource from a path.