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: describe.rs
    path of file: ./repos/fluvio/crates/fluvio-cli/src/client/topic
    
    the code of the file until where you have to start completion: //!
//! # Describe Topic CLI
//!
//! CLI to describe Topics and their corresponding Partitions
//!

use std::sync::Arc;

use tracing::debug;
use clap::Parser;
use anyhow::Result;

use fluvio::Fluvio;
use fluvio::metadata::topic::Top
    
    pub async fn process<O: Terminal>(self, out: Arc<O>, fluvio: &Fluvio) -> Result<()> {
        let topic = self.topic;
        let output_type = self.output.format;
        debug!("describe topic: {}, {:?}", topic, output_type);

        let admin = fluvio.admin().await;
        let topics = admin.list::<TopicSpec, _>(vec![topic]).await?;

        display::describe_topics(topics, output_type, out).await?;
        Ok(())
    }