IntrstPmtStmt
                Mandatory
                Transaction Identification
TxId
                Mandatory
                Definition: Unambiguous identification of the transaction as know by the instructing party.
Type: Max35Text (String)
Restrictions:
- MinLength: 1
- MaxLength: 35
Agrmt
                Optional
                Oblgtn
                Mandatory
                StmtParams
                Mandatory
                Pgntn
                Optional
                IntrstStmt
                Mandatory
                SplmtryData
                Repetition (0..n)