Function emit_worker_compose 

pub fn emit_worker_compose(
    context: &str,
    table: &UnitTable,
    consumes: &[String],
    aliases: &HashMap<String, String>,
    unit_tables: &HashMap<String, UnitTable>,
    binding_modules: &HashMap<String, String>,
    flattened: &HashMap<String, String>,
    unit_consumes: &HashMap<String, Vec<String>>,
    unit_consumes_aliases: &HashMap<String, HashMap<String, String>>,
    unit_flattened: &HashMap<String, HashMap<String, String>>,
    needs_kv: bool,
) -> String