code: def _compute_reference_space_affine_matrix(
      image, ref_image
  ) -> torch.Tensor:
      ndim = ref_image.ndim
  
      # Spacing and direction as matrices
      spacing_matrix, inv_spacing_matrix = (
          m[:ndim, :ndim].numpy()
          for m in _compute_spacing_matrix(image)
      )
      ref_spacing_matrix, ref_inv_spacing_matrix = (
          m[:ndim, :ndim].numpy()
          for m in _compute_spacing_matrix(ref_image)
      )
  
      direction_matrix, inv_direction_matrix = (
          m[:ndim, :ndim].numpy()
          for m in _compute_direction_matrix(image)
      )
      ref_direction_matrix, ref_inv_direction_matrix = (
          m[:ndim, :ndim].numpy()
          for m in _compute_direction_matrix(ref_image)
      )
  
      # Matrix calculation
      matrix = (
          ref_direction_matrix
          @ ref_spacing_matrix
          @ inv_spacing_matrix
          @ inv_direction_matrix
      )
  
      # Offset calculation
      pixel_offset = -1
      image_size = np.asarray(
          ref_image.GetLargestPossibleRegion().GetSize(), np.float32
      )
      translation = (
          (
              ref_direction_matrix @ ref_spacing_matrix
              - direction_matrix @ spacing_matrix
          )
          @ (image_size + pixel_offset)
          / 2
      )
      translation += np.asarray(ref_image.GetOrigin()) - np.asarray(
          image.GetOrigin()
      )
  
      # Convert matrix ITK matrix and translation to MONAI affine matrix
      ref_affine_matrix = itk_to_monai_affine(
          image, matrix=matrix, translation=translation
      )
  
      return ref_affine_matrix
  
imports: from __future__ import annotations
  from typing import TYPE_CHECKING, cast
  import numpy
  import torch
  from monai.config.type_definitions import DtypeLike
  from monai.data import ITKReader, ITKWriter
  from monai.data.meta_tensor import MetaTensor
  from monai.data.utils import orientation_ras_lps
  from monai.transforms import EnsureChannelFirst
  from monai.utils import MetaKeys, SpaceKeys, convert_to_dst_type, optional_import
label_desc: Use image node_id 10 for calling a global function with example usage: _compute_reference_space_affine_matrix(image, ref_image) and returns: ref_affine_matrix