class_docstr: A ledger to keep track of transactions that occur in the order
  management system.
docstr: Resets the ledger.
docstr_tok: ["Resets","the","ledger","."]
code: def reset(self):
      """Resets the ledger."""
      self.transactions = []
  
imports: from typing import List
  from collections import namedtuple
  import pandas
label_desc: Use image node_id 4 for calling the Ledger obj's underlying member method code with example usage: obj.reset() without return types