code: def make_single_index(ix):
      w = ix.writer()
      for doc in docs:
          w.add_document(ev=u("a"), **doc)
      w.commit()
  
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 2 for calling a global function with example usage: make_single_index(ix) without return types