code: def arr_unique(arr):
      aux = np.sort(arr)
      flag = np.concatenate(
          (np.ones(1, dtype=np.bool_), aux[1:] != aux[:-1])
      )
      return aux[flag]
  
imports: from __future__ import print_function
  import locale
  import numba
  import numpy
  from umap.utils import norm
label_desc: Use image node_id 1 for calling a global function with example usage: arr_unique(arr) and returns: aux