old_contents: # flake8: noqa
  # from operator import Compose_RPY_and_T
  # from operator import EndomorphismBasis
  # from operator import ComposeVector_RPY_T
  # from operator import WeightAdd_of_vector
  # from operator import WeightDir
  # from operator import Nullificator
  from .operator import (
      Add_of_double, Add_of_matrix, Add_of_vector, Component_of_vector, Compose_R_and_T, ConvolutionTemporal,
      HomoToMatrix, HomoToRotation, HomoToTwist, Inverse_of_matrix, Inverse_of_matrixHomo, Inverse_of_matrixrotation,
      Inverse_of_matrixtwist, Inverse_of_unitquat, MatrixDiagonal, MatrixHomoToPose, MatrixHomoToPoseQuaternion,
      MatrixHomoToPoseRollPitchYaw, MatrixHomoToPoseUTheta, MatrixToHomo, MatrixToQuaternion, MatrixToRPY,
      MatrixToUTheta, MatrixTranspose, Multiply_double_vector, Multiply_matrix_vector, Multiply_matrixHomo_vector,
      Multiply_of_double, Multiply_of_matrix, Multiply_of_matrixHomo, Multiply_of_matrixrotation,
      Multiply_of_matrixtwist, Multiply_of_quaternion, Multiply_of_vector, PoseRollPitchYawToMatrixHomo,
      PoseRollPitchYawToPoseUTheta, PoseUThetaToMatrixHomo, QuaternionToMatrix, RPYToMatrix, Selec_column_of_matrix,
      Selec_of_matrix, Selec_of_vector, SkewSymToVector, Stack_of_vector, Substract_of_double, Substract_of_matrix,
      Substract_of_vector, UThetaToQuaternion)
  
  from .derivator import Derivator_of_Matrix, Derivator_of_Vector
  from .matrix_constant import MatrixConstant
  from .vector_constant import VectorConstant
  
new_contents: # flake8: noqa
  # from operator import Compose_RPY_and_T
  # from operator import EndomorphismBasis
  # from operator import ComposeVector_RPY_T
  # from operator import WeightAdd_of_vector
  # from operator import WeightDir
  # from operator import Nullificator
  from .operator import (
      Add_of_double, Add_of_matrix, Add_of_vector, Component_of_vector, Compose_R_and_T, ConvolutionTemporal,
      HomoToMatrix, HomoToRotation, HomoToTwist, Inverse_of_matrix, Inverse_of_matrixHomo, Inverse_of_matrixrotation,
      Inverse_of_matrixtwist, Inverse_of_unitquat, MatrixDiagonal, MatrixHomoToPose, MatrixHomoToPoseQuaternion,
      MatrixHomoToPoseRollPitchYaw, MatrixHomoToPoseUTheta, MatrixToHomo, MatrixToQuaternion, MatrixToRPY,
      MatrixToUTheta, MatrixTranspose, Multiply_double_vector, Multiply_matrix_vector, Multiply_matrixTwist_vector,
      Multiply_matrixHomo_vector, Multiply_of_double, Multiply_of_matrix, Multiply_of_matrixHomo, Multiply_of_matrixrotation,
      Multiply_of_matrixtwist, Multiply_of_quaternion, Multiply_of_vector, PoseRollPitchYawToMatrixHomo,
      PoseRollPitchYawToPoseUTheta, PoseUThetaToMatrixHomo, QuaternionToMatrix, RPYToMatrix, Selec_column_of_matrix,
      Selec_of_matrix, Selec_of_vector, SkewSymToVector, Stack_of_vector, Substract_of_double, Substract_of_matrix,
      Substract_of_vector, UThetaToQuaternion)
  
  from .derivator import Derivator_of_Matrix, Derivator_of_Vector
  from .matrix_constant import MatrixConstant
  from .vector_constant import VectorConstant
  
subject: Add Multiply_matrixTwist_vector in math_small_entities