code: def init_normc_(weight, gain=1):
      weight.normal_(0, 1)
      weight *= gain / torch.sqrt(weight.pow(2).sum(1, keepdim=True))
  
file_path: SerpentAI/serpent/machine_learning/reinforcement_learning/ppo/distributions.py
imports: import math
  import torch
label_desc: Use image node_id 2 for calling a global function with example usage: init_normc_(weight, gain) without return types