Function load_node 

pub fn load_node(
    model: &str,
    runtime: Option<&str>,
    max_context: Option<i32>,
    lanes: u32,
    offline: bool,
    wal: &Path,
) -> Result<LoadedNode, String>

A fleet node’s model by path or id, as superfluid serve loads one: pulled when given by id, on its runtime (installed first if it never was), in a window sized for this device unless max_context pins it.