text: function up() {
  
      var NEW_CLASSROOMS_COLLECTION_ID = "51df104fe4b073dbbb1c84fa";
      var RESPONSE_DECLARATION_REGEX = /<responseDeclaration.*(\n?)(.*)\>/g;
      var EXACT_MATCH_ATTRIBUTE = "exactMatch=\"false\"";
  
      function rewrite(item) {
          return item.replace(EXACT_MATCH_ATTRIBUTE, "").replace(RESPONSE_DECLARATION_REGEX, "<responseDeclaration $1$2 " + EXACT_MATCH_ATTRIBUTE + ">")
      }
  
      return function(){
          var newClassroomsContent = db.content.find({"collectionId": NEW_CLASSROOMS_COLLECTION_ID});
  
          newClassroomsContent.forEach(function(content) {
              content.data.files.forEach(function(file) {
                  if (file.isMain && file.content) {
                      file.content = rewrite(file.content);
                  }
              });
              db.content.save(content);
          });
      };
  
  };