pub fn is_upgradeable_loader_present(&self) -> bool {
        self.account_keys
            .iter()
            .any(|&key| key == bpf_loader_upgradeable::id())
    }
/// Returns true if any account is the bpf upgradeable loader
Returns true if any account is the bpf upgradeable loader
Returns true if any account is the bpf upgradeable loader
pub fn is_upgradeable_loader_present(&self) -> bool {
        self.account_keys
            .iter()
            .any(|&key| key == bpf_loader_upgradeable::id())
    }
pub fn is_upgradeable_loader_present ( & self ) -> bool { self . account_keys . iter ( ) . any ( | & key | key == bpf_loader_upgradeable :: id ( ) ) }
Returns true if any account is the bpf upgradeable loader
Returns true if any account is the bpf upgradeable loader
&self