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: command.rs
    path of file: ./repos/meilisearch/xtask/src/bench
    
    the code of the file until where you have to start completion: use std::collections::BTreeMap;
use std::fmt::Display;
use std::io::Read as _;

use anyhow::{bail, Context as _};
use serde::Deserialize;

use super::assets::{fetch_asset, Asset};
use super::client::{Client, Method};

#[derive(Clone, Deserialize)]
pub struct Command {
    pub route: String,
    pub method: Method,
    #[serde(default)]
    pub body: Body,
    #[serde(default)]
    pub synchronous: SyncMode,
}

#[derive(Default, Clone, Deserialize)]
#[serde(untagged)]
pub enum Body {
    Inline {
        inline: serde_json::Value,
    },
    Asset {
        asset: String,
    },
    #[default]
    Empty,
}

impl Body {
    pub fn get(
        self,
        assets: &BTreeMap<String, Asset>,
        asset_folder: &str,
    ) -> anyhow::Result<Option<(Vec<u8>, &'static str)>> {
        Ok(match self {
            Body::Inline { inline: body } => Some((
                serde_json::to_vec(&body)
                    .context("serializing to bytes")
                    .context("while getting inline body")?,
                "application/json",
            )),
            Body::Asset { asset: name } => Some({
                let contex
    
async fn wait_for_tasks(client: &Client) -> anyhow::Result<()> {
    loop {
        let response = client
            .get("tasks?statuses=enqueued,processing")
            .send()
            .await
            .context("could not wait for tasks")?;
        let response: serde_json::Value = response
            .json()
            .await
            .context("could not deserialize response to JSON")
            .context("could not wait for tasks")?;
        match response.get("total") {
            Some(serde_json::Value::Number(number)) => {
                let number = number.as_u64().with_context(|| {
                    format!("waiting for tasks: could not parse 'total' as integer, got {}", number)
                })?;
                if number == 0 {
                    break;
                } else {
                    tokio::time::sleep(std::time::Duration::from_secs(1)).await;
                    continue;
                }
            }
            Some(thing_else) => {
                bail!(format!(
                    "waiting for tasks: could not parse 'total' as a number, got '{thing_else}'"
                ))
            }
            None => {
                bail!(format!(
                    "waiting for tasks: expected response to contain 'total', got '{response}'"
                ))
            }
        }
    }
    Ok(())
}