code: def is_identically_one(x):
      """
      Check if argument is exactly the number one. True for the number one;
      false for other numbers; false for :class:`~torch.Tensor`s.
      """
      if isinstance(x, numbers.Number):
          return x == 1
      if not torch._C._get_tracing_state():
          if (
              isinstance(x, torch.Tensor)
              and x.dtype == torch.int64
              and not x.shape
          ):
              return x.item() == 1
      return False
  
imports: import copy
  import ctypes
  import functools
  import numbers
  import weakref
  from contextlib import contextmanager
  import torch
  import torch.distributions
  from torch import logsumexp
  from torch.distributions.utils import broadcast_all
  from pyro.util import ignore_jit_warnings
  from ..None import settings
label_desc: Use image node_id 6 for calling a global function with example usage: is_identically_one(x) and returns: False, unknown, unknown