class_docstr: Transaction managers.
class_docstr_tok: ["Transaction","managers","."]
docstr: Create the TransactionManager with a transaction instance.
  If the given instance is a TransactionManager, this returns itself.
docstr_tok: ["Create","the","TransactionManager","with","a","transaction","instance",".","If","the","given","instance","is","a","TransactionManager",",","this","returns","itself","."]
code: def create(transactions):
      """
      Create the TransactionManager with a transaction instance.
      If the given instance is a TransactionManager, this returns itself.
      """
      if isinstance(transactions, TransactionManager):
          return transactions
      return TransactionManager(transactions)
  
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 7 for calling the TransactionManager obj's underlying member method code with example usage: obj.create(transactions) and returns: TransactionManager, transactions