optimize attributes plus
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@ -140,4 +140,8 @@ public fun <A : Attribute<Unit>> Attributes(
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attribute: A,
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): Attributes = MapAttributes(mapOf(attribute to Unit))
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public operator fun Attributes.plus(other: Attributes): Attributes = MapAttributes(content + other.content)
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public operator fun Attributes.plus(other: Attributes): Attributes = when{
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isEmpty() -> other
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other.isEmpty() -> this
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else -> MapAttributes(content + other.content)
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}
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