class Builder {
        String devId;
        Long packageNo;
        String msgId;
        String respId;
        Rs rs;

        public Builder setDevId(String devId) {
            this.devId = devId.replaceFirst("^0*", "");
            return this;
        }

        public Builder setPackageNo(Long packageNo) {
            this.packageNo = packageNo;
            return this;
        }

        public Builder setMsgId(String msgId) {
            this.msgId = msgId;
            return this;
        }

        public Builder setRespId(String respId) {
            this.respId = respId;
            return this;
        }

        public Builder setRs(Rs re) {
            this.rs = re;
            return this;
        }

        public Cmd build() {
            return new Cmd(this);
        }
    }


    @Override
    public String toString() {<FILL_FUNCTION_BODY>

        return "Cmd{" +
                "devId='" + devId + '\'' +
                ", packageNo=" + packageNo +
                ", msgId='" + msgId + '\'' +
                ", respId='" + respId + '\'' +
                ", rs=" + rs +
                '}';
    
<no_super_class>