class_docstr: Removes the given key from the input dict. Useful for removing modalities from a
  video clip that aren't needed.
class_docstr_tok: ["Removes","the","given","key","from","the","input","dict",".","Useful","for","removing","modalities","from","a","video","clip","that","are","n't","needed","."]
docstr: Args:
      x (Dict[str, torch.Tensor]): video clip dict.
docstr_tok: ["Args",":","x","(","Dict","[","str",",","torch.Tensor","]",")",":","video","clip","dict","."]
code: def __call__(
      self, x: Dict[str, torch.Tensor]
  ) -> Dict[str, torch.Tensor]:
      """
      Args:
          x (Dict[str, torch.Tensor]): video clip dict.
      """
      if self._key in x:
          del x[self._key]
      return x
  
imports: from typing import Callable, Dict, List, Optional, Tuple
  import pytorchvideo.transforms.functional
  import torch
  import torchvision.transforms
label_desc: Use image node_id 2 for calling the RemoveKey obj's underlying member method code with example usage: obj.__call__(x) and returns: x