//! One-off helper: read a `.path.json` file, write the JSONL form to a
//! `.path.jsonl` file at the same basename. Used to regenerate the JSONL
//! example files under `examples/` whenever their JSON counterparts change.
//!
//! Usage: `cargo run -p path-cli --example convert-path-to-jsonl -- <in.path.json> <out.path.jsonl>`
use fs;
use Graph;