Parse successful
<?xml version="1.0" encoding="ISO-8859-1"?>
<Dataset xmlns="http://xml.opendap.org/ns/DAP/4.0#" xml:base="file:dap4/test_simple_9.xml" dapVersion="4.0" dmrVersion="1.0" name="test_simple_9">
    <Enumeration name="color" basetype="Byte">
        <EnumConst name="red" value="1"/>
        <EnumConst name="blue" value="2"/>
        <EnumConst name="gray" value="3"/>
    </Enumeration>
    <Enum name="e" enum="/color"/>
</Dataset>

<?xml version="1.0" encoding="ISO-8859-1"?>
<Dataset xmlns="http://xml.opendap.org/ns/DAP/4.0#" xml:base="file:dap4/test_simple_9.xml" dapVersion="4.0" dmrVersion="1.0" name="test_simple_9">
    <Enumeration name="color" basetype="Byte">
        <EnumConst name="red" value="1"/>
        <EnumConst name="blue" value="2"/>
        <EnumConst name="gray" value="3"/>
    </Enumeration>
    <Enum name="e" enum="/color">
        <Attribute name="DAP4_Checksum_CRC32" type="String">
            <Value>a505df1b</Value>
        </Attribute>
    </Enum>
</Dataset>

The data:
{ 1 }
