But instead of this, I would prefer some way to just hand it JSON and for it to just index all the fields...

for comparison, this is my meilisearch SDK code:

    fun createCustomers() {
        val client = Client(Config("http://localhost:7700", "password"))
        val index = client.index("customers")
        val customers = transaction {
            val customers = Customer.all()
            val json = customers.map { CustomerJson.from(it) }
            Json.encodeToString(ListSerializer(CustomerJson.serializer()), json)
        }
        index.addDocuments(customers, "id")
    }