code: def setSingleStep(self, singleStep):
          
          if not isinstance(singleStep, int):
              raise TypeError("Argument is not of type int")
          # don't use negative values
          self._singleStep = abs(singleStep)
          return self._singleStep
docs: setter to _singleStep. converts negativ values to positiv ones.
  
          Args:
              singleStep (int): new _singleStep value. converts negativ values to positiv ones.
  
          Raises:
              TypeError: If the given argument is not an integer.
  
          Returns:
              int or long: the absolute value of the given argument.