internal static async ValueTask <Schema> OpenOrInitFromTrie(LTrie trie)
{
using var key = await trie.GetValue(LastFileNumberKey);
ulong number = 10000000UL;
if (key is LTrieValue)
{
number = await key.ReadValueULong();
}
else
{
await trie.SetValue(LastFileNumberKey, number);
await trie.Storage.Flush();
}
return(new Schema(trie, number));
}