code: def process_static_cat(self, feature: torch.Tensor) -> torch.Tensor:
      if self.embeddings["embed_static"] is not None:
          feature = self.embeddings["embed_static"](feature)
      return feature.unsqueeze(1).expand(-1, self.T, -1).float()
  
file_path: gluonts/src/gluonts/nursery/robust-mts-attack/pts/modules/feature.py
imports: from typing import List, Optional
  import torch
  import torch.nn
label_desc: Use image node_id 3 for calling the FeatureAssembler obj's underlying member method code with example usage: obj.process_static_cat(feature) and returns: feature