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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def parse_drawing(document, container, elem):
 """Parse drawing element. We don't do much with drawing element. We can find embeded image but we don't do more than that. """


    _blip = elem.xpath('.//a:blip', namespaces=NAMESPACES)

    if len(_blip) > 0:
        blip = _blip[0]
        _rid = blip.attrib[_name('{{{r}}}embed')]

        img = doc.Image(_rid)
        container.elements.append(img)