1; Refer to https://github.com/nvim-treesitter/nvim-treesitter/blob/master/queries/go/injections.scm#L4C1-L16C41
 2(call_expression
 3  (selector_expression) @_function
 4  (#any-of? @_function
 5    "regexp.Match" "regexp.MatchReader" "regexp.MatchString" "regexp.Compile" "regexp.CompilePOSIX"
 6    "regexp.MustCompile" "regexp.MustCompilePOSIX")
 7  (argument_list
 8    .
 9    [
10      (raw_string_literal)
11      (interpreted_string_literal)
12    ] @injection.content
13    (#set! injection.language "regex")))