code: def get_norm(indegree):
      """Get Laplacian Normalization"""
      float_degree = L.cast(indegree, dtype="float32")
      float_degree = L.clamp(float_degree, min=1.0)
      norm = L.pow(float_degree, factor=-0.5)
      return norm
  
file_path: PGL/legacy/pgl/layers/conv.py
imports: import pgl
  import paddle.fluid
  import paddle.fluid.layers
  from pgl.utils import paddle_helper
  from pgl import message_passing
  import numpy
label_desc: Use image node_id 6 for calling a global function with example usage: get_norm(indegree) and returns: norm