<xsd:group name="CommodityCalculationPeriodsPointer.model">
    <xsd:annotation>
        <xsd:documentation xml:lang="en">Model group enables users to reference a Calculation Periods schedule in the form of a series of actual dates in a calculationPeriods container or in the form of a parameterized schedule in a calculationPeriodsSchedule container.</xsd:documentation>
    </xsd:annotation>
    <xsd:choice>
        <xsd:element name="calculationPeriodsReference" type="CalculationPeriodsReference">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A pointer style reference to the Calculation Periods defined on another leg.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:element name="calculationPeriodsScheduleReference" type="CalculationPeriodsScheduleReference">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A pointer style reference to the Calculation Periods Schedule defined on another leg.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:element name="calculationPeriodsDatesReference" type="CalculationPeriodsDatesReference">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">A pointer style reference to single-day-duration Calculation Periods defined on another leg.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
    </xsd:choice>
</xsd:group>