ARRAY = 0
NATIVE = 0
LITTLE_ENDIAN = 0
BIG_ENDIAN = 0
VOID = 0
UINT8 = 0
INT8 = 0
UINT16 = 0
INT16 = 0
UINT32 = 0
INT32 = 0
UINT64 = 0
INT64 = 0
BFUINT8 = 0
BFINT8 = 0
BFUINT16 = 0
BFINT16 = 0
BFUINT32 = 0
BFINT32 = 0
BF_POS = 0
BF_LEN = 0
FLOAT32 = 0

def struct(addr, descriptor, layout_type=NATIVE):
    return 0

def sizeof(struct):
    return 0

def addressof(obj):
    return 0

def bytes_at(addr, size):
    return 0

def bytearray_at(addr, size):
    return 0