code: def slicable(dim, pad=0):
      dim0 = np.prod(dim[:-1]) + pad
      return (dim0, dim[-1])
  
file_path: neon/tests/test_backend_lrn.py
imports: import numpy
  import pytest
  from neon import logger
label_desc: Use image node_id 1 for calling a global function with example usage: slicable(dim, pad) and returns: dim0,  dim