public Builder removeMedia(java.lang.String key) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      internalGetMutableMedia().ensureBuilderMap().remove(key);
      return this;
    }
<pre>
Optional. The metadata of the chosen media file for the ad.
</pre>

<code>
map&lt;string, .google.protobuf.Value&gt; media = 5 [(.google.api.field_behavior) = OPTIONAL];
</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/AdStitchDetail.java