public Builder clearNote() {
            note_ = getDefaultInstance().getNote();
            bitField0_ &= ~0x00000100;
            onChanged();
            return this;
        }
<code>optional string note = 9;</code>

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