class_docstr: Passthrough class that implements the progress API.
  
  This class implements the tqdm and SimpleProgressBar api but
  does nothing. This class can be used as a stand-in for an
  optional progressbar, most commonly in the case of nested
  progress bars.
class_docstr_tok: ["Passthrough","class","that","implements","the","progress","API",".","This","class","implements","the","tqdm","and","SimpleProgressBar","api","but","does","nothing",".","This","class","can","be","used","as","a","stand-in","for","an","optional","progressbar",",","most","commonly","in","the","case","of","nested","progress","bars","."]
code: def __exit__(
      self, exc_type, exc_value, exc_traceback
  ) -> Literal[False]:
      return False
  
imports: import sys
  import warnings
  from time import time
  from typing import cast, Iterable, Sized, TextIO
  from captum._utils.typing import Literal
label_desc: Use image node_id 3 for calling the NullProgress obj's underlying member method code with example usage: obj.__exit__(exc_type, exc_value, exc_traceback) and returns: False