class_docstr: Decode key/data sets using a list of handlers.
  
  For each key/data item, this iterates through the list of
  handlers until some handler returns something other than None.
class_docstr_tok: ["Decode","key\/data","sets","using","a","list","of","handlers",".","For","each","key\/data","item",",","this","iterates","through","the","list","of","handlers","until","some","handler","returns","something","other","than","None","."]
code: def decode1(self, key, data):
      if not data:
          return data
  
      # if data is a stream handle, we need to read all the content before decoding
      if Decoder._is_stream_handle(data):
          ds = data
          # The behavior of .read can differ between streams (e.g. HTTPResponse), hence this is used instead
          data = b"".join(data)
          ds.close()
  
      for f in self.handlers:
          result = f(key, data)
          if result is not None:
              return result
      return data
  
imports: import io
  import json
  import os.path
  import pickle
  import tempfile
  import torch
  from torch.utils.data.datapipes.utils.common import StreamWrapper
label_desc: Use image node_id 4 for calling the Decoder obj's underlying member method code with example usage: obj.decode1(key, data) and returns: data, data, result