class_docstr: Transaction managers.
class_docstr_tok: ["Transaction","managers","."]
docstr: Returns the initial candidates.
docstr_tok: ["Returns","the","initial","candidates","."]
code: def initial_candidates(self):
      """
      Returns the initial candidates.
      """
      return [frozenset([item]) for item in self.items]
  
imports: import sys
  import csv
  import argparse
  import json
  import os
  from collections import namedtuple
  from itertools import combinations
  from itertools import chain
label_desc: Use image node_id 4 for calling the TransactionManager obj's underlying member method code with example usage: obj.initial_candidates() and returns: unknown