The headline roll-up across every account in scope.
:deltas are period-over-period changes as fractions; a dimension with no earlier
period to compare against is absent.
Summary
Types
@type t() :: %FoPost.Analytics.Overview{ accounts: term(), deltas: term(), engagement_rate: term(), platforms: term(), raw: term(), today_stats: term(), total_accounts: term(), total_clicks: term(), total_comments: term(), total_engagement: term(), total_followers: term(), total_impressions: term(), total_likes: term(), total_posts: term(), total_profile_views: term(), total_reach: term(), total_reposts: term(), total_saves: term(), total_shares: term(), total_video_views: term() }