facebook: Facebook Settings. One argument out of: age, country, gender, age_gender, placement, cross_device, region, hourly_stats_aggregated_by_advertiser_time_zone, hourly_stats_aggregated_by_audience_time_zone
attribution: Attribtuion Time Window, defaults to 28 days. One of: "1d","7d" or "28d".
apiToken: API Token. Character. Usually the API token is provided within the Smartly.io web interface or by the account manager.
metrics: Metrics. Note: There are more metrics available. See the reporting section in the smartly.io interface. Vector with multiple argumets out of: impressions, ctr, cpm, cpc, spent, conversions, inline_link_clicks, clicks, cpa, reach, frequency, roi, revenue, social_impressions, social_clicks, website_clicks, newsfeed_clicks, deeplink_clicks, app_store_clicks, call_to_action_clicks, inline_post_engagement