def fetch_by_id(model, id, filters = {})
      get_resource("/v1/public/#{model}/#{id}", filters) if model_exists?(model) && validate_filters(filters)
    end
def fetch_by_id(model, id, filters = {})
      get_resource("/v1/public/#{model}/#{id}", filters) if model_exists?(model) && validate_filters(filters)
    end
fetch a record by id