code: def forward(self, input, weight, bias, eps: float):
      return F.instance_norm(input, weight=weight, bias=bias, eps=eps)
  
imports: import torch
  import torch.nn.functional
  import operator_benchmark
label_desc: Use image node_id 2 for calling the InstanceNormBenchmark obj's underlying member method code with example usage: obj.forward(input, weight, bias, eps) and returns: F