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import { assert, assertEquals } from "https://deno.land/std@0.65.0/testing/asserts.ts";
const $$value = Symbol.for("TypeValue");const $$tag = Symbol.for("Tag");const $$type = Symbol.for("Type");
export const assertIsDefined = value => typeof value  !== "undefined";// NOTE: assertIsEquivalent has a different signature than the other assert* which could lead into confusionexport const assertIsEquivalent = (containerA, containerB) => assert(isEquivalent(containerA, containerB));export const assertIsNone = value => !value && typeof value === "object";
// isEquivalent :: Setoid a|a -> Setoid b|b -> Booleanexport const isEquivalent = (containerA, containerB) => {  // When the container are Setoids...  if (Reflect.getPrototypeOf(containerA).hasOwnProperty("equals")) return containerA.equals(containerB);  else if (    Reflect.has(containerA, $$value) && Reflect.has(containerB, $$value)    && (      containerA[$$tag] === containerB[$$tag]      || containerA[$$type] === containerB[$$type]    )  ) {    return !assertEquals(containerA[$$value], containerB[$$value]);  } else if (    Reflect.has(containerA, $$tag) && Reflect.has(containerB, $$tag)    || Reflect.has(containerA, $$type) && Reflect.has(containerB, $$type)  ) {
    return (      containerA[$$tag] === containerB[$$tag]      || containerA[$$type] === containerB[$$type]    );  } else return false;};