struct Item:
    id: int
    foo: int
    name: bytes[10]
    description: bytes[20]
end

Item item1 = bzero(46)

item1.id = 123
item1.foo = 999
item1.name = "abc"
item1.description = "ABCDEF"

# manually extract a field from the bytes
log(itob(extract_uint64(item1, 0)))

# access a struct field by name 
log(item1.name)