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: null.rs
    path of file: ./repos/hickory-dns/crates/proto/src/rr/rdata
    
    the code of the file until where you have to start completion: // Copyright 2015-2023 Benjamin Fry <benjaminfry@me.com>
//
// Licensed under the Apache Lice
    
    fn read_data(decoder: &mut BinDecoder<'r>, length: Restrict<u16>) -> ProtoResult<Self> {
        let rdata_length = length.map(|u| u as usize).unverified(/*any u16 is valid*/);
        if rdata_length > 0 {
            let anything = decoder.read_vec(rdata_length)?.unverified(/*any byte array is good*/);
            Ok(Self::with(anything))
        } else {
            Ok(Self::new())
        }
    }