function pick(object, predicate, thisArg) {
	      if (object == null) {
	        return {};
	      }
	      return typeof predicate == 'function'
	        ? pickByCallback(object, bindCallback(predicate, thisArg, 3))
	        : pickByArray(object, baseFlatten(arguments, false, false, 1));
	    }
Creates an object composed of the picked `object` properties. Property
names may be specified as individual arguments or as arrays of property
names. If `predicate` is provided it is invoked for each property of `object`
picking the properties `predicate` returns truthy for. The predicate is
bound to `thisArg` and invoked with three arguments; (value, key, object).

@static
@memberOf _
@category Object
@param {Object} object The source object.
@param {Function|...(string|string[])} [predicate] The function invoked per
 iteration or property names to pick, specified as individual property
 names or arrays of property names.
@param {*} [thisArg] The `this` binding of `predicate`.
@returns {Object} Returns the new object.
@example

var object = { 'user': 'fred', 'age': 40 };

_.pick(object, 'user');
// => { 'user': 'fred' }

_.pick(object, _.isString);
// => { 'user': 'fred' }