def _return_value(content, ns):
doc = ElementTree.fromstring(content)<EOL>query = '<STR_LIT>' % {'<STR_LIT>': ns, '<STR_LIT>': '<STR_LIT>'}<EOL>rv = doc.find(query)<EOL>return int(rv.text)<EOL>
Find the return value in a CIM response.

    The xmlns is needed because everything in CIM is a million levels
    of namespace indirection.