Profile pictures

use whatsapp_rust::{Client, ContactError, Jid, ProfilePictureLookup,
    ProfilePictureRequest, ProfilePictureTarget, ProfilePictureType};

async fn picture(client: &Client, group: &Jid) -> Result<(), ContactError> {
    let result = client.pictures().lookup(ProfilePictureRequest::new(
        ProfilePictureTarget::Group(group), ProfilePictureType::Full,
    )).await?;
    match result {
        ProfilePictureLookup::Found(picture) => println!("{}", picture.url),
        ProfilePictureLookup::Unchanged => {},
        ProfilePictureLookup::NotFound => {},
        ProfilePictureLookup::NotAuthorized => {},
        _ => {},
    }
    Ok(())
}