Method is_async

codegraph-kernel/src/csharp.rs:441–445

(&self, node: Node)

    }

    fn is_async(&self, node: Node) -> bool {
        (0..node.child_count())
            .filter_map(|i| node.child(i))
            .any(|c| c.kind() == "modifier" && self.text(c) == "async")
    }

    /// isConst: `const` → true; else `static` AND `readonly` both present.
    fn is_const(&self, node: Node) -> bool {