code: def getMaxTimeAllowed(self):
          
          tat = self.Schema().getField("MaxTimeAllowed").get(self)
          return tat or self.bika_setup.getDefaultTurnaroundTime()
docs: Returns the maximum turnaround time for this analysis. If no TAT is
          set for this particular analysis, it returns the value set at setup
          return: a dictionary with the keys "days", "hours" and "minutes"