code: def sqrelu_bwd(g, x):
      return (2.0 * g * F.relu(x)).to(dtype=x.dtype)
  
imports: import math
  import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 7 for calling a global function with example usage: sqrelu_bwd(g, x) and returns: unknown