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Some functions for object introspection
Some functions for object introspection.
class A {}
class B extends A {}
let a = new A()
let b = new B()
console.log(ancestry(a) // ['Object', 'A'])
console.log(ancestry(b)) // ['Object', 'A', 'B']
console.log(isInstanceOf(a, 'A')) // true
console.log(isInstanceOf(b, 'A')) // true
console.log(isInstanceOf(a, 'B')) // false