code: def build_xform():
      mat = np.arange(9).reshape((3, 3))
      vec = np.arange(3) + 10
      xform = np.empty((4, 4), dtype=mat.dtype)
      xform[:3, :3] = mat[:]
      xform[3, :] = [0, 0, 0, 1]
      xform[:3, 3] = vec[:]
      return mat, vec, xform
  
imports: import numpy
  from ..affine_utils import from_matrix_vector, to_matrix_vector
label_desc: Use image node_id 1 for calling a global function with example usage: build_xform() and returns: mat,  vec,  xform