code: def index_numpy(x, start=None, end=None):
      if start:
          if end:
              return x[start:end]
          else:
              return x[start:]
      else:
          if end:
              return x[:end]
          else:
              return x
  
imports: import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: index_numpy(x, start, end) and returns: x, x, x, x