function isLaziable(func) {
      var funcName = getFuncName(func),
          other = lodash[funcName];

      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
        return false;
      }
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }
Checks if `func` has a lazy counterpart.

@private
@param {Function} func The function to check.
@returns {boolean} Returns `true` if `func` has a lazy counterpart,
 else `false`.