102 slot

A slot is a location in the data of a block entity or entity that an item stack can be placed in. A slot is defined by its slot index. In commands, a slot should be referred by a string id instead of its index. The string id is mapped to its index when executing command. A string id of slot consists of slot type and optional slot number, in the format of slot_type or slot_type.slot_number ... slot tercepat