; https://github.com/nvim-treesitter/nvim-treesitter/blob/cb79d2446196d25607eb1d982c96939abdf67b8e/queries/hcl/highlights.scm; highlights.scm[  "!"  "\*"  "/"  "%"  "\+"  "-"  ">"  ">="  "<"  "<="  "=="  "!="  "&&"  "||"] @operator [  "{"  "}"  "["  "]"  "("  ")"] @punctuation.bracket [  "."  ".*"  ","  "[*]"] @punctuation.delimiter [  (ellipsis)  "\?"  "=>"] @punctuation.special [  ":"  "="] @punctuation [  "for"  "endfor"  "in"  "if"  "else"  "endif"] @keyword [  (quoted_template_start) ; "  (quoted_template_end) ; "  (template_literal) ; non-interpolation/directive content] @string [  (heredoc_identifier) ; END  (heredoc_start) ; << or <<-] @punctuation.delimiter [  (template_interpolation_start) ; ${  (template_interpolation_end) ; }  (template_directive_start) ; %{  (template_directive_end) ; }  (strip_marker) ; ~] @punctuation.special (numeric_lit) @number (bool_lit) @boolean (null_lit) @constant (comment) @comment (identifier) @variable (body  (block    (identifier) @keyword)) (body  (block    (body      (block        (identifier) @type)))) (function_call  (identifier) @function) (attribute  (identifier) @variable) ; { key: val };; highlight identifier keys as though they were block attributes(object_elem  key:    (expression      (variable_expr        (identifier) @variable))) ; var.foo, data.bar;; first element in get_attr is a variable.builtin or a reference to a variable.builtin(expression  (variable_expr    (identifier) @variable)  (get_attr    (identifier) @variable))