Trying to deprecate length puppet4 function

Author: pmcmaw

lib/puppet/functions/length.rb

@@ -1,7 +1,8 @@
 # A function to eventually replace the old size() function for stdlib - The original size function did not handle Puppets new type capabilities, so this function is a Puppet 4 compatible solution.
 Puppet::Functions.create_function(:length) do
-  dispatch :length do
-    param 'Variant[String,Array,Hash]', :value
+  dispatch :deprecation_gen do
+    scope_param
+    optional_repeated_param 'Any', :args
   end
   def length(value)
     if value.is_a?(String)
@@ -10,5 +11,8 @@ def length(value)
       result = value.size
     end
     result
+  def deprecation_gen(scope, *args)
+    call_function('deprecation', 'length', "This method is deprecated, this function is now shipped with Puppet in versions 5.5.0 and later. For more information please see Puppet 5.5.0 Release Notes.")
+    scope.send("function_length", args)
   end
 end