public void FromJson(JsonNode jn)
{
KeyValues.Clear();
Accounts.Clear();
KeyValues.LookupFromJsonValues((JsonPairs)jn, (t) => t.Item1 != "accounts");
if (((JsonPairs)jn).KeyValues.TryGetValue("accounts", out var js))
{
Accounts.LookupFromJson((JsonPairs)js, CreateAccountFromJson);
}
}