code: def _is_scalar(x):
      """Determines if the given tensor is a scalar.
  
      Args
      ----
      - x (paddle.Tensor): Input tensor.
  
      Return
      ------
      - bool: True if the tensor is a scalar, False otherwise.
      """
      return x.size == 1 and x.dim() == 0 and tuple(x.shape) == ()
  
imports: import operator
  from typing import Optional, Union, Tuple, List, Sequence
  from numbers import Number
  import paddle
  from ivy.utils.exceptions import IvyNotImplementedException
  from ivy.func_wrapper import with_supported_dtypes, with_unsupported_device_and_dtypes, with_unsupported_dtypes
  import ivy.functional.backends.paddle
  import ivy
  from ivy import promote_types_of_inputs
  from ivy.functional.backends.paddle.elementwise import _elementwise_helper
  from ..None import backend_version
label_desc: Use image node_id 29 for calling a global function with example usage: _is_scalar(x) and returns: unknown