lang
lang: "apacheconf" | "bash" | "brainfuck" | "c" | "csharp" | "cpp" | "coffee-script" | "css" | "d" | "diff" | "django" | "docker" | "erb" | "erlang" | "pot" | "go" | "groovy" | "haskell" | "html" | "http" | "invisible" | "java" | "js" | "json" | "tex" | "make" | "mysql" | "nginx" | "objc" | "perl" | "php" | "text" | "postgresql" | "puppet" | "python" | "rainbow" | "remarkup" | "rst" | "robotframework" | "ruby" | "sql" | "twig" | "xml" | "yaml"