@java.lang.Override
    public boolean containsMetadata(java.lang.String key) {
        if (key == null) {
            throw new NullPointerException("map key");
        }
        return internalGetMetadata().getMap()
                .containsKey(key);
    }
<code>map&lt;string, string&gt; metadata = 7;</code>
turms-plugins/turms-plugin-livekit/src/main/java/im/turms/plugin/livekit/core/proto/egress/S3Upload.java