containsValue
 Platform and version requirements:  
fun containsValue(value: @UnsafeVariance V): Boolean
 Platform and version requirements: JS (1.1) 
open fun containsValue(value: V): Boolean
 Platform and version requirements: Native (1.3) 
fun containsValue(value: V): Boolean
Returns true if the map maps one or more keys to the specified value.
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Licensed under the Apache License, Version 2.0.
    https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-hash-map/contains-value.html