code: def query_shard(args):
      """Helper for request query from shard, same as shard[query].
  
      Parameters
      ---------
      args : (list of (int, number), :class:`~gensim.interfaces.SimilarityABC`)
          Query and Shard instances
  
      Returns
      -------
      :class:`numpy.ndarray` or :class:`scipy.sparse.csr_matrix`
          Similarities of the query against documents indexed in this shard.
  
      """
      (
          query,
          shard,
      ) = args  # simulate starmap (not part of multiprocessing in older Pythons)
      logger.debug(
          "querying shard %s num_best=%s in process %s",
          shard,
          shard.num_best,
          os.getpid(),
      )
      result = shard[query]
      logger.debug(
          "finished querying shard %s in process %s", shard, os.getpid()
      )
      return result
  
imports: import logging
  import itertools
  import os
  import heapq
  import warnings
  import numpy
  import scipy.sparse
  from gensim import interfaces, utils, matutils
label_desc: Use image node_id 1 for calling a global function with example usage: query_shard(args) and returns: result