code: def __init__(self, gamma=1) -> None:
      super().__init__()
      self.gamma = gamma
  
file_path: pytorch-metric-learning/tests/losses/test_instance_loss.py
imports: import unittest
  import numpy
  import torch
  import torch.nn.functional
  from torch import Tensor, nn
  from pytorch_metric_learning.losses import InstanceLoss
  from ..None import TEST_DEVICE, TEST_DTYPES
label_desc: Use image node_id 1 to create a new OriginalInstanceLoss object from inherited base classes: nn with example: obj = OriginalInstanceLoss(gamma)