code: def __draw_blocks(ax, blocks, pair):
          
          ax.grid(False)
  
          density_scale = blocks[-1].get_density()
          for block in blocks:
              bang_visualizer.__draw_block(ax, pair, block, density_scale)
docs: !
          @brief Display BANG-blocks on specified figure.
  
          @param[in] ax (Axis): Axis where bang-blocks should be displayed.
          @param[in] blocks (list): List of blocks that should be displyed.
          @param[in] pair (tuple): Pair of coordinate index that should be displayed.