[ 'constructor', 'step1', 'step2' ]
[class Scenario1 extends SubScenario1] {
  [Symbol(Symbol.metadata)]: Object <[Object: null prototype] {}> {}
} constructor
[AsyncFunction: step1] step1
[AsyncFunction: step2] step2
[ 'constructor', 'step0' ]
[ 'constructor' ]
1
2
[ 'constructor', 'step1', 'step2' ]
[class Scenario2 extends Scenario] {
  [Symbol(Symbol.metadata)]: [Object: null prototype] {}
} constructor
[AsyncFunction: step1] step1
[AsyncFunction: step2] step2
[ 'constructor' ]
