#2: Import util package.

src/util/.manifest

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+{
+	description = "API with a handful of table-related helper functions"
+}

src/util/apis/util

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+-- The problem is that we call os.loadAPI multiple times, and CC loads and overwrites the API every time.
+-- We can either stash API variables in a global table like this or patch CC to load each API once.
+function initializeGlobalTable(name)
+	return getTable(_G, name)
+end
+
+function getCoroutineTable(name)
+	return getTable(getTable(initializeGlobalTable("coroutineStorage"), coroutine.running()), name)
+end
+
+function getTable(obj, key)
+	local value = obj[key]
+	if value == nil then
+		value = {}
+		obj[key] = value
+	end
+	return value
+end
+
+function getNextUnusedIndex(obj)
+	local id = 1
+	while obj[id] ~= nil do
+		id = id + 1
+	end
+	return id
+end
+
+function insertRange(obj, items)
+	for _, item in pairs(items) do
+		table.insert(obj, item)
+	end
+end
+
+function removeWhere(obj, test)
+	local position = 1
+	while position <= #obj do
+		if test(obj[position]) then
+			table.remove(obj, position)
+		else
+			position = position + 1
+		end
+	end
+end
+
+function deepClone(obj)
+	if type(obj) ~= "table" then
+		return obj
+	end
+	local clone = {}
+	for k, v in pairs(obj) do
+		clone[k] = deepClone(v)
+	end
+	return clone
+end