applyObjectStyle(item, style)
Applies an object style to the given page item. The object style can be given as name or as an object style instance.
Type: function
Parameter(s):
- item {PageItem}:The page item to apply the style to. 
- style {ObjectStyle | String}:An object style instance or the name of the object style to apply. 
Returns:
- 
    {PageItem}:
 The page item that the style was applied to.