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: blob.rs
    path of file: ./repos/iroh/iroh-base/src/ticket
    
    the code of the file until where you have to start completion: //! Tickets for blobs.
use std::str::FromStr;

use crate::{
    hash::{BlobFormat, Hash},
    ticket::{self, Ticket},
};
use anyhow::{ensure, Result};
use serde::{Deserialize, Serialize};

use crate::node_addr::NodeAddr;

/// A token containing everything to get a file from th
    
    fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
        if deserializer.is_human_readable() {
            let s = String::deserialize(deserializer)?;
            Self::from_str(&s).map_err(serde::de::Error::custom)
        } else {
            let (peer, format, hash) = Deserialize::deserialize(deserializer)?;
            Self::new(peer, hash, format).map_err(serde::de::Error::custom)
        }
    }