int NONE = 0x0000
int EU = 0x0001
int DESCRIPTION = 0x0002
int EU_LOW = 0x0004
int EU_HIGH = 0x0008
int INSTR_LOW = 0x0010
int INSTR_HIGH = 0x0020
int OPEN = 0x0040
int CLOSE = 0x0080
int ORIGIN_NAME = 0x0100
int ORIGIN_DESCRIPTION = 0x0200
int ORIGIN_USER = 0x0400
int ORIGIN_HOST = 0x0800
int ORIGIN_TYPE = 0x1000
Dataclass representing various metadata flags.