code: def getPropagationBit(self, t, p):
          '''
          returns the propagation bit of a text value
          '''
          try:
              return self.validPropagations[t][p]['BITS']
          except KeyError:
              raise CommandExecutionError((
                  'No propagation type of "{0}".  It should be one of the following:  {1}'
                  ).format(p, ', '.join(self.validPropagations[t]))f getPropagationBit(self, t, p):
          '''
          returns the propagation bit of a text value
          '''
          try:
              return self.validPropagations[t][p]['BITS']
          except KeyError:
              raise CommandExecutionError((
                  'No propagation type of "{0}".  It should be one of the following:  {1}'
                  ).format(p, ', '.join(self.validPropagations[t])))
docs: returns the propagation bit of a text value