com.ustadmobile.libcache.db.entities.DownloadJob$Companion -> ky1:
# {"id":"sourceFile","fileName":"DownloadJob.kt"}
    1:3:kotlinx.serialization.KSerializer serializer():39:39 -> serializer
      # {"id":"com.android.tools.r8.residualsignature","signature":"()Lrl3;"}
