kotlinx.coroutines.Active -> k2:
# {"id":"sourceFile","fileName":"CancellableContinuationImpl.kt"}
    kotlinx.coroutines.Active INSTANCE -> a
      # {"id":"com.android.tools.r8.residualsignature","signature":"Lk2;"}
    3:5:void <init>():628:628 -> <clinit>
    3:5:void <clinit>():0 -> <clinit>
    6:8:void <clinit>():0:0 -> <clinit>
    1:3:java.lang.String toString():629:629 -> toString
