code: function templateFromFile(path) {
          // template source is a file name
          forcedTemplateName = 'singleton';
          if (cache.hasOwnProperty(templateSrc)) {
              registry.singleton = cache[templateSrc];
              return;
          }
          // Have to read this template for the first time
          var deferred = cache[templateSrc] = registry.singleton = new Deferred();
          fs.readFile(templateSrc, 'utf-8', function(err, data) {
              try {
                  if (err) throw err;
                  var template = compile({
                      data: data,
                      name: templateSrc,
                      path: templateSrc
                  });
                  deferred.resolve(template);
              } catch (err2) {
                  // delete cache[templateSrc]; // Should we do this?
                  deferred.reject(err2);
              }
          });
      }
docs: Read single template from a file using the given file name