code: def __init__(self, kernel_type="rbf", kernel_mul=2.0, kernel_num=5):
      super(IDMMD, self).__init__()
      self.kernel_num = kernel_num
      self.kernel_mul = kernel_mul
      self.fix_sigma = None
      self.kernel_type = kernel_type
  
file_path: insightface/recognition/idmmd/losses.py
imports: import torch
  from torch import nn
  import torch.nn.functional
label_desc: Use image node_id 1 to create a new IDMMD object from inherited base classes: nn with example: obj = IDMMD(kernel_type, kernel_mul, kernel_num)