Function solana_core::gossip_service::discover

pub fn discover(
    entrypoint: Option<&SocketAddr>, 
    num_nodes: Option<usize>, 
    timeout: Option<u64>, 
    find_node_by_pubkey: Option<Pubkey>, 
    find_node_by_gossip_addr: Option<&SocketAddr>, 
    my_gossip_addr: Option<&SocketAddr>
) -> Result<(Vec<ContactInfo>, Vec<ContactInfo>)>