public Builder clearMuteEndDate() {
            bitField0_ &= ~0x00000200;
            muteEndDate_ = 0L;
            onChanged();
            return this;
        }
<code>optional int64 mute_end_date = 10;</code>

@return This builder for chaining.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/group/Group.java