code: def __init__(self, n_blocks: int) -> None:
      """Initialization method.
  
      Args:
          n_blocks: Number of blocks.
  
      """
  
      logger.info("Creating class: GraphSpace.")
  
      self.n_blocks = n_blocks
  
      self.build()
  
      logger.debug("Blocks: %d | Built: %s.", self.n_blocks, self.built)
      logger.info("Class created.")
  
label_desc: Use image node_id 1 to create a new GraphSpace object  with example: obj = GraphSpace(n_blocks)