WeirdTypeError.swift

import Cocoa

struct TaskTitleArray: Equatable {
	let title: String
	let children: [TaskTitleArray]

	init(title: String, children: [TaskTitleArray]) {
		self.title = title
		self.children = children
	}

	init(title: String, children: [(String, Any?)]) {
		self.title = title
		self.children = []
	}
}

let lhs: TaskTitleArray = TaskTitleArray(title: "root", children: [
	("child0", nil),
	("child1", [
		("child10", [
			("child100", nil)])]),
	("child2", nil)] as [(String, Any?)])