public Builder removeMetadata(java.lang.String key) {
            if (key == null) {
                throw new NullPointerException("map key");
            }
            internalGetMutableMetadata().getMutableMap()
                    .remove(key);
            return this;
        }
<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