text: module.exports = function objectKeysMap(o, f, t) {
    var ret = {};
  
    if (typeof f !== 'function') {
      throw new TypeError('`f` has to be a function');
    }
  
    Object.keys(o).forEach(function (k) {
      ret[f.call(t || this, k, o[k], o)] = o[k];
    });
    return ret;
  };
  