code: def _order_by(
      candidates: Mapping[Predicate, Sequence[Any]], p: Predicate
  ) -> tuple[int, float]:
      return (len(candidates[p]), -p.cover_count)
  
file_path: dedupe/dedupe/branch_and_bound.py
imports: from __future__ import annotations
  import functools
  from typing import Any, Iterable, Mapping, Sequence, Tuple
  from ._typing import Cover
  from .predicates import Predicate
label_desc: Use image node_id 4 for calling a global function with example usage: _order_by(candidates, p) and returns: len,  unknown