class_docstr: Super-class for Body and Space orienters.
code: def rot_order(self):
      return self._rot_order
  
imports: from sympy.core.basic import Basic
  from sympy.core.sympify import sympify
  from sympy.functions.elementary.trigonometric import cos, sin
  from sympy.matrices.dense import eye, rot_axis1, rot_axis2, rot_axis3
  from sympy.matrices.immutable import ImmutableDenseMatrix
  from sympy.core.cache import cacheit
  from sympy.core.symbol import Str
  import sympy.vector
label_desc: Use image node_id 5 for calling the ThreeAngleOrienter obj's underlying member method code with example usage: obj.rot_order() and returns: self