code: def get_fuser_method(constructor):
      """
      Creates fuser method from class constructor of fused modules.
      """
      if _is_torch_2():
  
          def fuser_method(is_qat, m1, m2):
              if isinstance(m1, tuple):
                  m0, m1 = m1
                  return constructor(m1, m0, m2)
              return constructor(m1, m2)
  
      else:
  
          def fuser_method(is_qat, m1, m2):
              if isinstance(m2, tuple):
                  m2, m3 = m2
                  return constructor(m3, m2, m1)
              return constructor(m2, m1)
  
      return fuser_method
  
imports: from copy import deepcopy
  from typing import Any
  from typing import Callable
  from typing import List
  from typing import Optional
  from typing import Tuple
  from typing import Type
  import torch
  import torch.nn
  import torch.nn.functional
  from torch.ao.quantization.backend_config import BackendPatternConfig
  from torch.ao.quantization.backend_config import DTypeConfig
  from torch.ao.quantization.backend_config import DTypeWithConstraints
  from torch.ao.quantization.backend_config import ObservationType
  from coremltools.optimize.torch._utils.version_utils import is_torch_2
label_desc: Use image node_id 1 for calling a global function with example usage: get_fuser_method(constructor) and returns: fuser_method, constructor, constructor, constructor, constructor