import torch


def heterogeneous_mesh_handler_empty(*args):
    """Return empty tensors for vertices and faces of heterogeneous meshes."""
    return (torch.FloatTensor(size=(0, 3)), torch.LongTensor(size=(0,)),
            torch.LongTensor(size=(0, 3)), torch.FloatTensor(size=(0, 2)),
            torch.LongTensor(size=(0, 3)), torch.FloatTensor(size=(0, 3, 3)),
            torch.LongTensor(size=(0,)))