kotlin.collections.containsKey
containsKey
inline fun <K> Map<out K, *>.containsKey(key: K): Boolean
Returns true if the map contains the specified key.
Allows to overcome type-safety restriction of containsKey that requires to pass a key of type K.
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/contains-key.html
