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: keystore.rs
    path of file: ./repos/Tuxedo/wallet/src
    
    the code of the file until where you have to start completion: //! Wallet's local keystore.
//!
//! This is a thin wrapper around sc-cli for us
    
pub fn insert_key(keystore: &LocalKeystore, seed: &str) -> anyhow::Result<()> {
    // We need to provide a public key to the keystore manually, so let's calculate it.
    let public_key = Pair::from_phrase(seed, None)?.0.public();
    println!("The generated public key is {:?}", public_key);
    keystore
        .insert(KEY_TYPE, seed, public_key.as_ref())
        .map_err(|()| anyhow!("Error inserting key"))?;
    Ok(())
}