[C#]
    byte[] Before;

[VB.NET]
    Property Before As Byte()

[Pascal]
    property Before : ByteArray;

[C++]
    void get_Before(std::vector<uint8_t> &OutResult);
    void set_Before(const std::vector<uint8_t> &Value);

[PHP]
    string get_Before()
    void set_Before(array of byte|string|NULL $Value)

[Java]
    byte[] getBefore();
    void setBefore(byte[] Value);