Method flush

src/indexes/usv.rs:264–268

(&self, _: &Collection, _version: VersionNumber)

    }

    fn flush(&self, _: &Collection, _version: VersionNumber) -> Result<(), WaCustomError> {
        self.root.serialize()?;
        self.root.cache.flush_all()?;
        Ok(())
    }

    fn get_data(&self) -> Self::Data {
        Self::Data {