code: def factory_kwargs(kwargs):
      r"""Return a canonicalized dict of factory kwargs.
  
      Given kwargs, returns a canonicalized dict of factory kwargs that can be directly passed
      to factory functions like torch.empty, or errors if unrecognized kwargs are present.
  
      This function makes it simple to write code like this::
  
          class MyModule(nn.Module):
              def __init__(self, **kwargs):
                  factory_kwargs = torch.nn.factory_kwargs(kwargs)
                  self.weight = Parameter(torch.empty(10, **factory_kwargs))
  
      Why should you use this function instead of just passing `kwargs` along directly?
  
      1. This function does error validation, so if there are unexpected kwargs we will
      immediately report an error, instead of deferring it to the factory call
      2. This function supports a special `factory_kwargs` argument, which can be used to
      explicitly specify a kwarg to be used for factory functions, in the event one of the
      factory kwargs conflicts with an already existing argument in the signature (e.g.
      in the signature ``def f(dtype, **kwargs)``, you can specify ``dtype`` for factory
      functions, as distinct from the dtype argument, by saying
      ``f(dtype1, factory_kwargs={"dtype": dtype2})``)
      """
      if kwargs is None:
          return {}
      simple_keys = {"device", "dtype", "memory_format"}
      expected_keys = simple_keys | {"factory_kwargs"}
      if not kwargs.keys() <= expected_keys:
          raise TypeError(
              f"unexpected kwargs {kwargs.keys() - expected_keys}"
          )
  
      # guarantee no input kwargs is untouched
      r = dict(kwargs.get("factory_kwargs", {}))
      for k in simple_keys:
          if k in kwargs:
              if k in r:
                  raise TypeError(
                      f"{k} specified twice, in **kwargs and in factory_kwargs"
                  )
              r[k] = kwargs[k]
  
      return r
  
imports: from .modules import *
  from .parameter import Parameter, UninitializedParameter, UninitializedBuffer
  from .parallel import DataParallel
  from .None import init
  from .None import functional
  from .None import utils
label_desc: Use image node_id 1 for calling a global function with example usage: factory_kwargs(kwargs) and returns: r, dict