diff --git a/worldeditadditions/utils/mesh.lua b/worldeditadditions/utils/mesh.lua
index 6b0fa58..792e7a7 100644
--- a/worldeditadditions/utils/mesh.lua
+++ b/worldeditadditions/utils/mesh.lua
@@ -8,6 +8,7 @@ local wea = worldeditadditions
 -- ██      ██   ██  ██████ ███████
 
 --- A single face of a Mesh.
+-- @class
 local Face = {}
 Face.__index = Face
 
@@ -41,6 +42,7 @@ function Face.__eq(a, b) return Face.equal(a, b) end
 -- ██      ██ ███████ ███████ ██   ██
 
 --- A mesh of faces.
+-- @class
 local Mesh = {}
 Mesh.__index = Mesh
 
diff --git a/worldeditadditions/utils/node_identification.lua b/worldeditadditions/utils/node_identification.lua
index 5f42f18..9fe3324 100644
--- a/worldeditadditions/utils/node_identification.lua
+++ b/worldeditadditions/utils/node_identification.lua
@@ -76,6 +76,11 @@ end
 
 
 local sapling_aliases = {}
+
+--- Register a new sapling alias.
+-- @param	sapling_node_name	string		The canonical name of the sapling.
+-- @param	alias				string		The alias name of the sapling.
+-- @returns	bool[,string]		Whether the alias registration was successful or not. If false, then an error message as a string is also returned as the second value.
 function worldeditadditions.register_sapling_alias(sapling_node_name, alias)
 	if sapling_aliases[sapling_node_name] ~= nil then
 		return false, "Error: An alias against the node name '"..sapling_node_name.."' already exists."
@@ -83,6 +88,9 @@ function worldeditadditions.register_sapling_alias(sapling_node_name, alias)
 	sapling_aliases[alias] = sapling_node_name
 	return true
 end
+--- Convenience function to register many sapling aliases at once.
+-- @param	tbl	[string, string][]	A list of tables containing exactly 2 strings in the form { sapling_node_name, alias }.
+-- @returns	bool[,string]		Whether the alias registrations were successful or not. If false, then an error message as a string is also returned as the second value.
 function worldeditadditions.register_sapling_alias_many(tbl)
 	for i, next in ipairs(tbl) do
 		local success, msg = worldeditadditions.register_sapling_alias(
@@ -91,6 +99,7 @@ function worldeditadditions.register_sapling_alias_many(tbl)
 		)
 		if not success then return success, msg end
 	end
+	return true
 end
 --- Returns the current key ⇒ value table of sapling names and aliases.
 -- @return	table
diff --git a/worldeditadditions/utils/vector3.lua b/worldeditadditions/utils/vector3.lua
index 75f6698..4acc92f 100644
--- a/worldeditadditions/utils/vector3.lua
+++ b/worldeditadditions/utils/vector3.lua
@@ -1,7 +1,12 @@
 --- A 3-dimensional vector.
+-- @class
 local Vector3 = {}
 Vector3.__index = Vector3
 
+--- Creates a new Vector3 instance.
+-- @param x		number	The x co-ordinate value.
+-- @param y		number	The y co-ordinate value.
+-- @param z		number	The z co-ordinate value.
 function Vector3.new(x, y, z)
 	if type(x) ~= "number" then
 		error("Error: Expected number for the value of x, but received argument of type "..type(x)..".")