code: def anorm(x, axis=None, keepdims=False):
      """Compute L2 norms alogn specified axes."""
      return np.sqrt((x * x).sum(axis=axis, keepdims=keepdims))
  
file_path: lucid/lucid/misc/gl/meshutil.py
imports: from builtins import str
  from collections import OrderedDict
  import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: anorm(x, axis, keepdims) and returns: np