code: def setContentsMargins(self, left, top, right, bottom):
          
          self._margins   = (left, top, right, bottom)
          self.adjustTitleFont()
docs: Sets the contents margins for this node to the inputed values.
          
          :param      left    | <int>
                      top     | <int>
                      right   | <int>
                      bottom  | <int>