Function names_another_account 

pub fn names_another_account(
    collection: &str,
    record: &Value,
    account: &str,
    handle: Option<&str>,
) -> bool

Whether this record names an account other than the one writing it.

account is the writing account’s DID and handle the handle it holds now, if it has one. A record naming only the writing account — a reply into its own thread, a like of its own post — is not a contact and is not counted.