---
source: crates/alien-core/src/events/mod.rs
expression: hierarchy
---
[
    (
        "event-1",
        None,
        "TestBuildingStack { stack: \"root-stack\" }",
    ),
    (
        "event-2",
        Some(
            "event-1",
        ),
        "TestBuildingImage { image: \"app1\" }",
    ),
    (
        "event-3",
        Some(
            "event-2",
        ),
        "TestBuildImage { image: \"app1\", stage: \"compile\" }",
    ),
    (
        "event-4",
        Some(
            "event-3",
        ),
        "TestBuildImage { image: \"app1\", stage: \"optimize\" }",
    ),
    (
        "event-5",
        Some(
            "event-1",
        ),
        "TestBuildingImage { image: \"app2\" }",
    ),
]
