def METHOD_NAME(self):
    """
    PATCH request
    """
    global last_headers, last_payload, last_url, get_last_data, show_last_data
    __logger__.info("a PATCH request is received")
    self.send_response(200)
    get_last_data(self)
    headers_prefix = u'last'
    for item in last_headers:
        self.send_header("%s-%s" % (headers_prefix, item), last_headers[item])
    self.send_header("%s-url" % headers_prefix, "%s" % (last_url))
    show_last_data()   # verify VERBOSE global variable
    self.end_headers()
    self.wfile.write(last_payload)