private void setDeliveryDate(long value) {
        bitField0_ |= 0x00000010;
        deliveryDate_ = value;
    }
<code>optional int64 delivery_date = 5;</code>

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