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-rw-r--r--lib/protocols/Evaluator.mli10
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diff --git a/lib/protocols/Evaluator.mli b/lib/protocols/Evaluator.mli
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+type t
+
+class type implementation = object
+ method invoke : Handle.t -> (Handle.t, Concepts.Condition.condition) result
+end
+
+val make : #implementation -> Handle.protocol
+val from : Handle.t -> t Handle.interface option
+val require : Handle.t -> (t Handle.interface, Concepts.Condition.condition) result
+val invoke : t Handle.interface -> Handle.t -> (Handle.t, Concepts.Condition.condition) result