anchor.diff:      module private PostProcess =
           open AST
   
  -        /// Transforms the AST data structure into a list of (TransactionHeader, TransactionEntry list) tuples
  +        /// Transforms the AST data structure into a list of (Header, ASTEntry list) tuples
           /// Basically, we're dropping all the comment nodes
           let transformASTToTransactions ast =
               let transactionFilter (node: ASTNode) =
  
positive.code: 
          type ASTNode =
              | Comment of string
              | Transaction of TransactionHeader * ASTNode list
              | Entry of TransactionEntry
  
  
      
  
negative.code:             | TotalCost of Amount
              | UnitCost of Amount
  
          type ASTEntry = {
              Account: string;
              EntryType: EntryType;
              Amount: Amount option;
  