'Wraps the specified xml in an xml root element with default azure
namespaces'

@staticmethod
def doc_from_xml(document_element_name, inner_xml):

    xml = ''.join(['<', document_element_name, '    xmlns:i="http://www.w3.org/2001/XMLSchema-instance"', '    xmlns="http://schemas.microsoft.com/windowsazure">'])
    xml += inner_xml
    xml += ''.join(['</', document_element_name, '>'])
    return xml
