{
  "$type": "site.standard.document",
  "path": "/t/closures-and-functional-traits/23965#post_19",
  "publishedAt": "2026-02-05T07:21:15.000Z",
  "site": "https://internals.rust-lang.org",
  "textContent": "Those traits cover only quite limited range of possible signatures. One step outside and you need custom trait, with full-blown manual implementation.",
  "title": "Closures and functional traits"
}