The correct method for loading a mesh for a custom gizmo

Unity Engine
1

Can anybody help me set up the correct method for loading a mesh for a custom gizmo. I had a dumb solution working, but a number of team members had to delete their library and now the Resource.Load always fails.

    void OnDrawGizmos()
    {
        if (gizmoMesh == null)
        {
            gizmoMesh = ((GameObject)Resources.Load("Ring")).GetComponent<MeshFilter>().sharedMesh;
        }
        Gizmos.color = Color.blue;
        Gizmos.DrawWireMesh(gizmoMesh, transform.position, Quaternion.identity, gizmoScale);
    }
2

You could directly load a Mesh asset instead of a prefab with similar code, assuming the mesh is in Resources.