code: def default_file_reader(x):
      if isinstance(x, str):
          if x.endswith(".npy"):
              x = npy_loader(x)
          else:
              try:
                  x = pil_loader(x, color_space="RGB")
              except:
                  raise ValueError("File Format is not supported")
      # else:
      # raise ValueError('x should be string, but got %s' % type(x))
      return x
  
imports: import fnmatch
  import os
  import os.path
  import random
  import warnings
  import numpy
  import tqdm
label_desc: Use image node_id 6 for calling a global function with example usage: default_file_reader(x) and returns: x