PsiJavaFileStub [com.mylib]
  PsiPackageStatementStub[com.mylib]
    PsiModifierListStub[mask=0]
      PsiAnnotationStub[@org.jspecify.annotations.NullMarked]
  PsiClassStub[interface name=package-info fqn=com.mylib.package-info]
    PsiModifierListStub[mask=5120]
    PsiTypeParameterListStub
    PsiRefListStub[EXTENDS_LIST:]
    PsiRefListStub[IMPLEMENTS_LIST:]