Iterator Iterate a sequence of objects across some other object. Provides a way to operate across a sequence of objects that are generated one-by-one on demand. The returned objects can be of any type but the main public methods are on the #librdf_model classs and return sequence of #librdf_node objects such as librdf_model_get_sources(). @iterator: @map_context: @item: @Returns: @map_context: @world: @context: @is_end_method: @next_method: @get_method: @finished_method: @Returns: @iterator: @iterator: @Returns: @iterator: @Returns: @iterator: @Returns: @iterator: @Returns: @iterator: @Returns: @iterator: @Returns: @iterator: @Returns: @iterator: @map_function: @free_context: @map_context: @Returns: @world: @Returns: