nt.
                            The recipient will receive less bitcoins than you enter in the amount field.
6. replaceable              (boolean, optional, default=fallback to wallet's default) Allow this transaction to be replaced by a transaction with higher fees via BIP 125
7. conf_target              (numeric, optional, default=fallback to wallet's default) Confirmation target (in blocks)
8. estimate_mode            (string, optional, default=UNSET) The fee estimate mode, must be one of:
              