= Accessing Deeply Nested Elements In order to allow conveniently retrieving and changing deeply nested elements of <<ref_value>> objects the library implements https://datatracker.ietf.org/doc/html/rfc6901[RFC 6901 (JSON Pointer)]: This is particularly useful when throwing exceptions is undesirable. For example, compare with The library also allows changing and adding deeply nested elements. The function <<ref_value_set_at_pointer>> traverses the value similarly to <<ref_value_at_pointer>>, but additionally, it can create missing elements in certain cases: The specific behavior is controlled by an optional parameter of type <<ref_set_pointer_options>>. For example, here\'s the same example with a different option: