# are braces { and } used at all in elisp?

What is the convention for using { and } characters in Emacs Lisp if they are used at all?

Do macros make use of them?

What I tried: I opened info for Elisp and started incremental search for {.
Among other, { is used
• for Unicode character names ("\N{SUBSCRIPT FOUR}")
• as quantifier operator in regular expressions ("\\.\\{3\\}")
• in doc strings for modes' keymaps (\\{colorcomp-mode-map})
• @wasamasa: If you mean this, it doesn't contain { at all. – choroba Sep 25 '18 at 19:32
• The regular expression example should have more backslashes, e.g.: "\\.\\{3\\}" – npostavs Sep 25 '18 at 22:29