Add `each_key` param `as_json`, `to_if_alone_modifiers`. And update `each_key` param `to_if_alone`. Add comments.
Add `each_key` param `as_json`, `to_if_alone_modifiers`. And update `each_key` param `to_if_alone`. Add comments.

s-show/KE-complex_modifications,s-show/KE-complex_modifications,s-show/KE-complex_modifications