private void setDeliveryDateStart(long value) {
        bitField0_ |= 0x00000004;
        deliveryDateStart_ = value;
    }
<code>optional int64 delivery_date_start = 5;</code>

@param value The deliveryDateStart to set.
turms-client-kotlin/src/main/java/im/turms/client/model/proto/request/message/QueryMessagesRequest.java