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+(** Everything a rite supplies, bundled. Passing these as loose arguments let a
+    caller pair one rite's vocab with another's temporal; bundling makes that
+    unrepresentable through the normal path. Carries functions, so it has no
+    sexp form. *)
+type ('s, 'r) t = {
+  id : string;
+  vocab : ('s, 'r) Vocab.t;
+  year_start : int -> Date.t;
+      (** first day of the liturgical year opening in civil year y *)
+  temporal : Date.t -> ('s, 'r) Temporal.t;
+  anchors : int -> (string * Date.t) list;
+      (** Easter-derived days: (expected slug, date) *)
+  rules : ('s, 'r) Precedence.rules;
+  season_runs : 's list;
+      (** the expected run-length-compressed season sequence over one liturgical
+          year. NOT necessarily [vocab.seasons]: a rite may have one season
+          appear in two separate runs (the modern form's Ordinary Time does). *)
+}