code: def _get_device(self) -> Device:
      return self.point_embeddings[0].weight.device
  
imports: from __future__ import annotations
  from math import pi
  from typing import Optional
  import torch
  from torch import nn
  from kornia.contrib.models.common import LayerNorm2d
  from kornia.core import Device, Module, Tensor, concatenate, cos, sin, stack, zeros
label_desc: Use image node_id 7 for calling the PromptEncoder obj's underlying member method code with example usage: obj._get_device() and returns: self