class_docstr: Transformer basic patch embedding module. Performs patchifying input, flatten and
  and transpose.
  
  ::
  
                                     PatchModel
                                         ↓
                                      flatten
                                         ↓
                                     transpose
  
  The builder can be found in `create_patch_embed`.
code: def __init__(
      self,
      *,
      patch_model: nn.Module = None,
  ) -> None:
      super().__init__()
      set_attributes(self, locals())
      assert self.patch_model is not None
  
file_path: pytorchvideo/pytorchvideo/models/stem.py
imports: from typing import Callable, Tuple
  import torch
  import torch.nn
  from pytorchvideo.layers.convolutions import ConvReduce3D
  from pytorchvideo.layers.utils import set_attributes
label_desc: Use image node_id 1 to create a new PatchEmbed object from inherited base classes: nn with example: obj = PatchEmbed()