Function remove_node_properties 

pub fn remove_node_properties(
    dir: &Path,
    stem: &str,
    removals: &HashMap<[u8; 16], HashSet<String>>,
) -> Result<u64, GfError>

Rewrite properties/<stem>.parquet applying per-node_uuid REMOVE removals, staged and committed as one batch (#790).

Errors

Propagates Parquet / Arrow / IO errors from reading or rewriting the file.