in formstack-consents/src/main/scala/com/gu/identity/formstackconsents/IdentityClient.scala [98:108]
private def identityRequestEncoder(newsletter: Newsletter): Encoder[IdentityRequest] = {
implicit val circeConfig: Configuration = Configuration.default.copy(
transformMemberNames = {
case "listType" => newsletter.listType
case other => other
}
)
deriveEncoder[IdentityRequest]
}