function ary(func, n, guard) {
	      if (guard && isIterateeCall(func, n, guard)) {
	        n = undefined;
	      }
	      n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
	      return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
	    }
Creates a function that accepts up to `n` arguments ignoring any
additional arguments.

@static
@memberOf _
@category Function
@param {Function} func The function to cap arguments for.
@param {number} [n=func.length] The arity cap.
@param- {Object} [guard] Enables use as a callback for functions like `_.map`.
@returns {Function} Returns the new function.
@example

_.map(['6', '8', '10'], _.ary(parseInt, 1));
// => [6, 8, 10]