Companion object for records with union fields are not being generated

[tonicebrian]

When I compile:

{
  "type":"record",
  "name":"Union",
  "namespace":"com.sksamuel.avro4s",
  "fields":[ {
    "name":"union",
    "type": [ "int", "string", "boolean" ]
   } ]
}

I get as a result in domain.scala

package com.sksamuel.avro4s

//auto generated code by avro4s
case class Union(
  union: shapeless.:+:[Int, shapeless.:+:[String, shapeless.:+:[Boolean, shapeless.CNil]]]
)

But I miss the object companion specified https://github.com/sksamuel/sbt-avro4s/blob/master/src/main/scala/com/sksamuel/avro4s/ModuleRenderer.scala#L14-L17

object Union {
   type UnionType = shapeless.:+:[Int, shapeless.:+:[String, shapeless.:+:[Boolean, shapeless.CNil]]]
}

Without this alias big union fields are not usable because we cannot specify before hand all the data structure in the client.

I'm using version 1.0.1 of the plugin.