docs: def set_ylimits_for_all(self, row_column_list=None, min=None, max=None):
          """Set y-axis limits of specified subplots.
  
          :param row_column_list: a list containing (row, column) tuples to
              specify the subplots, or None to indicate *all* subplots.
          :type row_column_list: list or None
          :param min: minimal axis value
          :param max: maximum axis value
  
          """
          if row_column_list is None:
              self.limits['ymin'] = min
              self.limits['ymax'] = max
          else:
              for row, column in row_column_list:
                  self.set_ylimits(row, column, min, max)