kotlin-fork/annotations/com/google/common/collect/annotations.xml

<root>
  <item name='com.google.common.collect.Multimap java.util.Set&lt;K&gt; keySet()'>
    <annotation name='org.jetbrains.annotations.NotNull'/>
  </item>
  <item name='com.google.common.collect.SetMultimap java.util.Map&lt;K,java.util.Collection&lt;V&gt;&gt; asMap()'>
    <annotation name='org.jetbrains.annotations.NotNull'/>
  </item>
</root>