Documentation / dataflow-async / com.femastudios.dataflow.async.extensions / containsKey
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containsKey
fun <K> Attribute<Map<in K, *>>.containsKey(key: K): Attribute<Boolean>fun <K> Attribute<Map<in K, *>>.containsKey(key: Attribute<K>): Attribute<Boolean>
Same as containsKey, but accepts Attribute and returns a new Attribute.
Calling this function is equivalent to use transform and calling containsKey in the transformation function.
This is simply a convenience function.
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