code: def _unconstrain(constrained_value, constraint):
      with torch.no_grad():
          if callable(constrained_value):
              constrained_value = constrained_value()
          unconstrained_value = transform_to(constraint).inv(
              constrained_value.detach()
          )
          return torch.nn.Parameter(unconstrained_value)
  
imports: import functools
  import inspect
  import weakref
  from collections import OrderedDict, namedtuple
  import torch
  from torch.distributions import constraints, transform_to
  import pyro
  from pyro.ops.provenance import detach_provenance
  from pyro.poutine.runtime import _PYRO_PARAM_STORE
label_desc: Use image node_id 4 for calling a global function with example usage: _unconstrain(constrained_value, constraint) and returns: torch