changelog::{ChangelogWriter, CommitContext, CommitGroup, Config, ContextBuilder},

        changelog::{
            ChangelogWriter, CommitContext, CommitGroup, Config, Context, ContextBuilder, Note,
            NoteGroup, Reference,
        },

use crate::conventional::changelog::{Context, Note, NoteGroup, Reference};

                    .chain(Some(Rev("", None)));

                    .chain(Some(Rev(rev_stop, None)));