code: def try_sort(sortedby, key, q=None, limit=None, reverse=False):
      if q is None:
          q = query.Term("ev", u("a"))
  
      correct = [
          d["id"] for d in sorted(docs, key=key, reverse=reverse)
      ][:limit]
      schema = get_schema()
  
      for fn in (make_single_index, make_multi_index):
          ix = RamStorage().create_index(schema)
          fn(ix)
          with ix.searcher() as s:
              r = s.search(
                  q, sortedby=sortedby, limit=limit, reverse=reverse
              )
              rids = [d["id"] for d in r]
              assert rids == correct
  
imports: from __future__ import with_statement
  from datetime import datetime, timedelta
  import random
  from whoosh import fields, query, sorting, columns
  from whoosh.compat import u
  from whoosh.compat import permutations, xrange
  from whoosh.filedb.filestore import RamStorage
  from whoosh.util.testing import TempIndex
label_desc: Use image node_id 4 for calling a global function with example usage: try_sort(sortedby, key, q, limit, reverse) without return types