code: def unflatten_master_params(param_group, master_param):
      return _unflatten_dense_tensors(
          master_param, [param for (_, param) in param_group]
      )
  
imports: import numpy
  import torch
  import torch.nn
  from torch._utils import _flatten_dense_tensors, _unflatten_dense_tensors
  from .None import logger
label_desc: Use image node_id 6 for calling a global function with example usage: unflatten_master_params(param_group, master_param) and returns: _unflatten_dense_tensors