You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: access_path_trie.rs
    path of file: ./repos/diem/language/move-prover/bytecode/src
    
    the code of the file until where you have to start completion: // Copyright (c) The Diem Core Contributors
// SPDX-License-Ident
    
    fn get_node(&self, ap: AccessPath) -> Option<&TrieNode<T>> {
        let mut node = match self.0.get(ap.root()) {
            Some(n) => n,
            None => return None,
        };
        for offset in ap.offsets() {
            node = match node.get_offset(offset) {
                Some(n) => n,
                None => return None,
            }
        }
        Some(node)
    }