* add signature information when help on one command
* tell user that one command support operated on cell paths
Also, make type output to be more friendly, like `record<>` should just be `record`
And the same to `table<>`, which should be `table`
* simplify code
* don't show signatures for parser keyword
* update comment
* output arg syntax shape as type, so it's the same as describe command
* fix string when no positional args
* update signature body
* update
* add help signature test
* fix arg output format for composed data type like list or record
* fix clippy
* add comment
* Add search terms for `all?`
JavaScript has `Array.every` similar to `all?`
* Add search terms for `any?`
JavaScript has `Array.some` similar to `any?`
* Add search terms for `length`
Count, `len()`, and `size`/`sizeof` in widely-known programming languages are equivalent to `length`
* Add search terms for `keybindings`
Shortcut and hotkey are common synonyms (especially in web and GUI land) for keybindings.
