code: def two_qubit_matrix_to_ion_operations(q0: ops.Qid,
                                         q1: ops.Qid,
                                         mat: np.ndarray,
                                         atol: float = 1e-8
                                         ) -> List[ops.Operation]:
      
      kak = linalg.kak_decomposition(mat, atol=atol)
      operations = _kak_decomposition_to_operations(q0,
          q1, kak, atol)
      return _cleanup_operations(operations)
docs: Decomposes a two-qubit operation into MS/single-qubit rotation gates.
  
      Args:
          q0: The first qubit being operated on.
          q1: The other qubit being operated on.
          mat: Defines the operation to apply to the pair of qubits.
          tolerance: A limit on the amount of error introduced by the
              construction.
  
      Returns:
          A list of operations implementing the matrix.