code: public JSONAPIDocument<List<Campaign>> fetchCampaigns() throws IOException {
      String path = new URIBuilder()
                      .setPath("current_user/campaigns")
                      .addParameter("include", "rewards,creator,goals")
                      .toString();
      return converter.readDocumentCollection(
        getDataStream(path),
        Campaign.class
      );
    }
docs: Get a list of campaigns the current creator is running - also contains other related data like Goals
  Note: The first campaign data object is located at index 0 in the data list
  
  @return the list of campaigns
  @throws IOException Thrown when the GET request failed