HTTP/1.0 200 OK
XDODS-Server: .*
XOPeNDAP-Server: .*
XDAP: .*
Date: .*
Last-Modified: .*
Content-Type: Multipart/Related; boundary=boundary; start="<start@opendap.org>"; type="Text/xml"
Content-Description: dap4-data-ddx

--boundary
Content-Type: Text/xml; charset=iso-8859-1
Content-Id: <start@opendap.org>
Content-Description: dap4-ddx

<?xml version="1.0" encoding="ISO-8859-1"?>
<Dataset name="test" .*
    <Byte name="a">
        <Attribute name="size" type="Int32">
            <value>7</value>
        </Attribute>
        <Attribute name="type" type="String">
            <value>cars</value>
        </Attribute>
    </Byte>
    <blob href="cid:.*@opendap.org"/>
</Dataset>

--boundary
Content-Type: application/octet-stream
Content-Id: <.*@opendap.org>
Content-Description: dap4-data
Content-Encoding: binary

.*
--boundary--