code: def second_valid_transform(
      tape: qml.tape.QuantumTape, index: int
  ) -> (Sequence[qml.tape.QuantumTape], Callable):
      """A valid trasnform."""
      tape1 = tape.copy()
      tape2 = tape.copy()
      tape._ops.pop(index)  # pylint:disable=protected-access
  
      def fn(results):
          return qml.math.sum(results)
  
      return [tape1, tape2], fn
  
imports: from typing import Sequence, Callable
  from functools import partial
  import pytest
  import pennylane
  from pennylane.transforms.core import transform, TransformError, TransformContainer
label_desc: Use image node_id 8 for calling a global function with example usage: second_valid_transform(tape, index) and returns: list,  fn, qml