@type t() :: %Gleanex.Client.FeedResponse{
  experimentIds: [integer()] | nil,
  facetResults: map() | nil,
  mentionsTimeWindowInHours: integer() | nil,
  results: [Gleanex.Client.FeedResult.t()] | nil,
  serverTimestamp: integer(),
  trackingToken: String.t() | nil
}