docs: private AssignmentInsn getEffectiveAssignmentInstruction(final Collection<AssignmentInsn> assignmentInstructions) {
          AssignmentInsn result = NullAssignmentInsn.getInstance();
          int maxInstructionNumber = -1;
          for (final AssignmentInsn assignmentInsn : assignmentInstructions) {
              final int indexOfAssignmentInstruction = assignmentInsn.getIndexWithinMethod();
              if (indexOfAssignmentInstruction > maxInstructionNumber) {
                  maxInstructionNumber = indexOfAssignmentInstruction;
                  result = assignmentInsn;
              }
          }
          return result;
      }