pub fn stamp_save(
save: &mut Value,
app_version: &str,
saved_at_ms: f64,
) -> Result<(), String>Expand description
Stamps save JSON with the app that wrote it and when, as the web game does
before writing a file. app_version names your host and its version (it
must not read as a build older than 2.0, which the web game takes for a
founder’s tower); saved_at_ms is the time in milliseconds since the Unix
epoch. Refuses JSON that is not a tower.