import devsim

device = "device_2d"
try:
    devsim.create_gmsh_mesh(mesh=device, file="device_2d.msh")
    devsim.add_gmsh_region(mesh=device, gmsh_name="Silicon", region="Silicon", material="Silicon")
    devsim.add_gmsh_contact(mesh=device, gmsh_name="MT1", name="MT1", region="Silicon", material="metal")
    devsim.finalize_mesh(mesh=device)
    devsim.create_device(mesh=device, device=device)
    
    x = devsim.get_node_list(device=device, region="Silicon", name="x")
    y = devsim.get_node_list(device=device, region="Silicon", name="y")
    elements = devsim.get_element_node_list(device=device, region="Silicon")
    print(f"Nodes count: {len(x)}, Elements count: {len(elements)}")
    print("Success!")
except Exception as e:
    print(f"Error: {e}")