<heartrobber:type>: <item_id>
0: heart
1-2: <free>
3: end_relay
4: tag_and_inscriber
5: card
6: inscribed_card
7: chunk_loader
8: geolocator
9: xp_crystal
10: crystallized_honey
11: armor_stand_drop_mediator
12: creaking_essence
13: <scrapped/free> biolocator
14: wise_reinforcement
15: glass_item_frame
16: glow_glass_item_frame
17: frame_lock
18: empty_envelope
19: envelope
20: retrieval_rod
21: correction_fluid