Array of Unions

[Gill, John]

Is it valid for the items in an array to be Union schema?

{
  "type": "array",
  "items": { "type": [ "int", "boolean", "string" ] }
}

According to the spec it is ambiguous:

  *   items: the schema of the array's items.

I have tried this schema in both python and c and it generates exceptions for 
invalid Schema. I was just curious if this was valid or not.

Thanks
- John