definitions beginning with lowercase letter don't compile

[balhoff]

I noticed that definitions in the JSON schema must be capitalized for Argus to work. For this example adapted from the Argus readme:

package test

import argus.macros._
import io.circe._
import io.circe.syntax._

@fromSchemaJson("""
{
  "title": "Example Schema",
  "type": "object",
  "definitions" : {
    "address": {
      "type": "object",
      "properties": {
        "number" : { "type": "integer" },
        "street" : { "type": "string" }
      }
    },
    "ErdosNumber": {
      "type": "integer"
    }
  },
  "properties": {
    "name": {
      "type": "array",
      "items": { "type": "string" }
    },
    "age": {
      "description": "Age in years",
      "type": "integer"
    },
    "address" : { "$ref" : "#/definitions/address" },
    "erdosNumber" : { "$ref" : "#/definitions/ErdosNumber" }
  }
}
  """, name = "Person")
object Schema

object TestArgus {

  import Schema._
  import Schema.Implicits._

  val json = """
   |{
   |  "name" : ["Bob", "Smith"],
   |  "age" : 26,
   |  "address" : {
   |    "number" : 31,
   |    "street" : "Main St"
   |  },
   |  "erdosNumber": 123
   |}
  """.stripMargin

  // Decode into generated case class
  val person = parser.decode[Person](json).right.toOption.get

  // Update address 
  val personAddress = address(number = Some(42), street = Some("Alt St"))
  val newPerson = person.copy(address = Some(personAddress))

  // Encode base to json
  newPerson.asJson

}

I get a compile error:

[error] .../src/main/scala/test/TestArgus.scala:7: not found: type address
[error] @fromSchemaJson("""
[error]  ^

If I change the schema to use "Address" (and also the case class name to match), everything works. Is this intended?