class_docstr: Dummy feature extractor which implements the identity function.
class_docstr_tok: ["Dummy","feature","extractor","which","implements","the","identity","function","."]
code: def forward(self, series: SeriesBatch) -> torch.Tensor:
      return self.feature_extractor(series)
  
file_path: gluonts/src/gluonts/nursery/few_shot_prediction/src/meta/models/EcDc/components/feature.py
imports: from abc import ABC, abstractmethod
  import torch
  from torch import nn
  from meta.data.batch import SeriesBatch
label_desc: Use image node_id 2 for calling the IdentityFeatureExtractor obj's underlying member method code with example usage: obj.forward(series) and returns: self