code: def angle_axis_to_quaternion(axis_angle: Tensor) -> Tensor:
      return axis_angle_to_quaternion(axis_angle)
  
imports: from __future__ import annotations
  from typing import Optional
  import torch
  import torch.nn.functional
  from kornia.constants import pi
  from kornia.core import Tensor, concatenate, cos, pad, sin, stack, tensor, where, zeros_like
  from kornia.core.check import KORNIA_CHECK, KORNIA_CHECK_SHAPE
  from kornia.utils import deprecated
  from kornia.utils.helpers import _torch_inverse_cast
label_desc: Use image node_id 22 for calling a global function with example usage: angle_axis_to_quaternion(axis_angle) and returns: axis_angle_to_quaternion