commit-comparison

record commit-comparison {
  ahead-by: s32,
  base-commit: commit,
  behind-by: s32,
  commits: list​<commit>,
  diff-url: string,
  files: option​<list​<diff-entry>>,
  html-url: string,
  merge-base-commit: commit,
  patch-url: string,
  permalink-url: string,
  status: commit-comparison-status-enum,
  total-commits: s32,
  url: string,
}