Latte\Engine::setContentType PHP Method

    public function setContentType($type)
    {
        $this->contentType = $type;
        return $this;
    }

 /**
  * @return Engine
  */
 public function create()
 {
     $engine = new Engine();
     // Options
     $engine->setTempDirectory($this->tempDir);
     $engine->setAutoRefresh($this->autoRefresh);
     $engine->setContentType($this->contentType);
     // Filters
     foreach ($this->filters as $name => $callback) {
         $engine->addFilter($name, $callback);
     }
     // Macros
     $engine->onCompile[] = function (Engine $engine) {
         $compiler = $engine->getCompiler();
         foreach ($this->macros as $macro) {
             $macro::install($compiler);
         }
     };
     return $engine;
 }