code: def log_flush_with_xml(self, data):
          
          if not isinstance(data, basestring):
              data = ElementTree.tostring(data)
          response = self.delete(data)
docs: Flush logs for devices with a supplied xml string.
  
          From the Casper API docs:
              log, log_id, interval, and devices specified in an XML file.
              Sample file:
                <logflush>
                  <log>policy</log>
                  <log_id>2</log_id>
                  <interval>THREE MONTHS</interval>
                  <computers>
                    <computer>
                      <id>1</id>
                    </computer>
                    <computer>
                      <id>2</id>
                    </computer>
                  </computers>
                </logflush>
  
          Args:
              data (string): XML string following the above structure or
                  an ElementTree/Element.
                  Elements:
                      logflush (root)
                      log (Unknown; "policy" is the only one listed in
                           docs).
                      log_id: Log ID value.
                       interval: Combination of "Zero", "One", "Two",
                          "Three", "Six", and "Day", "Week", "Month",
                          "Year". e.g. ("Three+Months")
                          Please note: The documentation for this
                          specifies the singular form (e.g. "Month"),
                          and plural ("Months") at different times, and
                          further the construction is listed as
                          "THREE MONTHS" elsewhere. Limited testing
                          indicates that pluralization does not matter,
                          nor does capitalization. The "+" seems optional
                          as well.
                          Please test!
                      Device Arrays:
                          Again, acceptable values are not listed in the
                          docs, aside from the example ("computers").
                          Presumably "mobiledevices", and possibly
                          "computergroups" and "mobiledevicegroups" work.
  
          Raises:
              JSSDeleteError if provided url_path has a >= 400 response.