You may see that some folders have both singular and plural alternatives. Some examples are:

- "function" and "functions" both exist seperately
- "item_modifier" and "item_modifiers" both exist seperately
- "loot_table" and "loot_tables" both exist seperately
- "tags/function" and "tags/functions" both exist seperately

This is to allow for compatibility for both versions 1.20.6 and 1.21. Mojang made a change
in 1.21 where the folders are supposed to be renamed to their "singular" alternative
(i.e. "functions" => "function" and more listed above) for datapacks to work. By including both
plural and singular names for the folder, it makes this single datapack compatible for both
1.20.6 and 1.21!