code: function storeModel(model, permissionSchemaKey) {
      if (model && model.rolePermissions) {
          var obj = {
              permissionSchemaKey: permissionSchemaKey,
              rolePermissions: model.rolePermissions
          };
          exports.store(obj);
      }
  }
docs: Method storing model's role permissions to cache
  @param model {Object}
  @param permissionSchemaKey {String}