function at(collection) {
	      var length = collection ? collection.length : 0;
	      if (isLength(length)) {
	        collection = toIterable(collection);
	      }
	      return baseAt(collection, baseFlatten(arguments, false, false, 1));
	    }
Creates an array of elements corresponding to the given keys, or indexes,
of `collection`. Keys may be specified as individual arguments or as arrays
of keys.

@static
@memberOf _
@category Collection
@param {Array|Object|string} collection The collection to iterate over.
@param {...(number|number[]|string|string[])} [props] The property names
 or indexes of elements to pick, specified individually or in arrays.
@returns {Array} Returns the new array of picked elements.
@example

_.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
// => ['a', 'c', 'e']

_.at(['fred', 'barney', 'pebbles'], 0, 2);
// => ['fred', 'pebbles']