y: Filter[bag] - scope-170
|   |
|   Not[boolean] - scope-173
|   |
|   |---POIsNull[boolean] - scope-172
|       |
|       |---Project[bytearray][0] - scope-171
|
|---test-27: Split - scope-169
    |
    |---test-26: Load()

x: Store()
|
|---x: Filter[bag] - scope-174
    |   |
    |   POIsNull[boolean] - scope-176
    |   |
    |   |---Project[bytearray][0] - scope-175
    |
    |---test-27: Split - scope-169
        |
        |---test-26: Load()