code: def transform_index_to_physical_point(image, index):
      
      if not isinstance(image, iio.ANTsImage):
          raise ValueError('image must be ANTsImage type')
  
      if isinstance(index, np.ndarray):
          index = index.tolist()
  
      if not isinstance(index, (tuple,list)):
          raise ValueError('index must be tuple or list')
  
      if len(index) != image.dimension:
          raise ValueError('len(index) != image.dimension')
  
      index = [i+1 for i in index]
      ndim = image.dimension
      ptype = image.pixeltype
      libfn = utils.get_lib_fn('TransformIndexToPhysicalPoint%s%i' % (utils.short_ptype(ptype), ndim))
      point = libfn(image.pointer, [list(index)])
  
      return np.array(point[0])
docs: Get spatial point from index of an image.
  
      ANTsR function: `antsTransformIndexToPhysicalPoint`
  
      Arguments
      ---------
      img : ANTsImage
          image to get values from
  
      index : list or tuple or numpy.ndarray
          location in image
  
      Returns
      -------
      tuple
  
      Example
      -------
      >>> import ants
      >>> import numpy as np
      >>> img = ants.make_image((10,10),np.random.randn(100))
      >>> pt = ants.transform_index_to_physical_point(img, (2,2))