code: function _getCachedFunction(data, vars, relPath) {
    var func;
    if (app.viewCaching) {
        func = app.views.callbacks[relPath];
        if (func instanceof Function) { return func; }
        else { return null; }
    } else { return null; }
  }
docs: /*
  Gets a view from the cache
  
  @private
  @param {function} func
  @param {string} data
  @param {object} vars
  @param {string} relPath
  @return {function} Function, or null