class_docstr: Holds the inventory of 2D pieces and performs cutting.
  :param max_pieces_in_inventory: Size of the inventory. If full, the oldest pieces get discarded.
  :param raw_piece_size: Size of a fresh raw (= full-size) piece.
docstr: Checks weather all slots in the inventory are in use.
docstr_tok: ["Checks","weather","all","slots","in","the","inventory","are","in","use","."]
code: def is_full(self) -> bool:
      """Checks weather all slots in the inventory are in use."""
      return len(self.pieces) == self.max_pieces_in_inventory
  
file_path: maze/tutorials/tutorial_maze_env/part02_renderer/env/inventory.py
imports: from .maze_action import Cutting2DMazeAction
label_desc: Use image node_id 2 for calling the Inventory obj's underlying member method code with example usage: obj.is_full() and returns: unknown