<xsd:group name="Days.model">
    <xsd:annotation>
        <xsd:documentation xml:lang="en">The different options for specifying which days are pricing days within a pricing period. Unless a lag element is present, the pricing period will be contained within the calculation period.</xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
        <xsd:element name="dayType" type="CommodityDayTypeEnum" minOccurs="0">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">The type of day on which pricing occurs.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:sequence>
            <xsd:element name="dayDistribution" type="CommodityFrequencyType">
                <xsd:annotation>
                    <xsd:documentation xml:lang="en">The method by which the pricing days are distributed across the pricing period.</xsd:documentation>
                </xsd:annotation>
            </xsd:element>
            <xsd:element name="dayCount" type="xsd:positiveInteger" minOccurs="0">
                <xsd:annotation>
                    <xsd:documentation xml:lang="en">The number of days over which pricing should take place.</xsd:documentation>
                </xsd:annotation>
            </xsd:element>
        </xsd:sequence>
        <xsd:element name="businessDayConvention" type="BusinessDayConventionEnum" minOccurs="0">
            <xsd:annotation>
                <xsd:documentation xml:lang="en">The convention for adjusting a date if it would otherwise fall on a day that is not a business day.</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
    </xsd:sequence>
</xsd:group>