Event counts per widget, in one of two ways.

With widget_ids (up to 100, from list_widgets): every listed live widget of the site in the order given, zeros without events; repeated ids count once, unknown, deleted and foreign ids are left out. The period is optional here: without from and to the numbers cover the whole life, and period is null.

Without widget_ids the period is required: the live widgets with events in the period, most shown first. Deleted widgets and events without a widget are left out, so the sum may be below get_widgets_stats.

folder_id, is_active, layout and search narrow either way to the widgets that match every one given, and then every matched widget is listed, zero ones too: one call gives the numbers of a folder or of the active widgets. total is the sum of the listed widgets; use it rather than adding the items up.

Counts: show is the widget shown to a visitor (a view), submit a form sent, openUrl a button or link opening a URL, showWidget a button opening another widget, addToCart, applyCoupon and copyToClipboard the matching cart and coupon buttons. rates next to each total gives every action counter divided by show, rounded to 4 places (rates.submit is the conversion rate); a rate is null when show is 0, as it is undefined, not zero.