<xsd:group name="OptionSettlement.model"> <xsd:annotation> <xsd:documentation xml:lang="en">A group which has Option Settlement elements</xsd:documentation> </xsd:annotation> <xsd:sequence> <xsd:element name="settlementType" type="SettlementTypeEnum" /> <xsd:element name="settlementDate" type="AdjustableOrRelativeDate" minOccurs="0" /> <xsd:group ref="SettlementAmountOrCurrency.model" minOccurs="0" /> </xsd:sequence> </xsd:group>