code: def reorient_vectors(bvecs, current_ornt, new_ornt, axis=0):
      """Change the orientation of gradients or other vectors.
  
      Moves vectors, storted along axis, from current_ornt to new_ornt. For
      example the vector [x, y, z] in "RAS" will be [-x, -y, z] in "LPS".
  
      R: Right
      A: Anterior
      S: Superior
      L: Left
      P: Posterior
      I: Inferior
  
      """
      return gradients.reorient_vectors(
          bvecs=bvecs,
          current_ornt=current_ornt,
          new_ornt=new_ornt,
          axis=axis,
      )
  
file_path: dipy/dipy/io/bvectxt.py
imports: from os.path import splitext
  import numpy
  from dipy.core import gradients
  from dipy.utils.deprecator import deprecate_with_version
label_desc: Use image node_id 3 for calling a global function with example usage: reorient_vectors(bvecs, current_ornt, new_ornt, axis) and returns: gradients