chunk_content: iting the number of instances from the training
  set of the SceneParse150 dataset to 150. 
  
  
  	Copied
  from datasets import load_dataset
  
  ds = load_dataset("scene_parse_150", split="train[:150]")
  Next, split the dataset into train and test sets. 
  
  
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  ds = ds.train_test_split(test_size=0.1)
  train_ds = ds["train"]
  test_ds = ds["test"]
  
  Prepare label maps
  	
  Create a dictionary that maps a label id to a label class, which will be useful when set