coil.request.Tags -> ku2:
# {"id":"sourceFile","fileName":"Tags.kt"}
    java.util.Map tags -> a
    coil.request.Tags EMPTY -> b
      # {"id":"com.android.tools.r8.residualsignature","signature":"Lku2;"}
    1:10:void <clinit>():36:36 -> <clinit>
    1:6:void <init>(java.util.Map):15:15 -> <init>
    5:23:boolean equals(java.lang.Object):28:28 -> equals
    1:7:int hashCode():31:31 -> hashCode
    1:22:java.lang.String toString():33:33 -> toString
