def main(operation: int) -> Any:
# create an array
stuff = ['a', 3, ['j', 3, 5], 'jk', 'lmnopqr']
# serialize it
to_save = serialize(stuff)
put('serialized', to_save)
if operation == 1:
return to_save
elif operation == 2:
to_retrieve = get('serialized')
return to_retrieve
elif operation == 3:
to_retrieve = get('serialized')
deserialized = deserialize(to_retrieve)
return deserialized
elif operation == 4:
to_retrieve = get('serialized')
deserialized = deserialize(to_retrieve)
return cast(list, deserialized)[2]
return False
def owner_of(token_id: ByteString) -> UInt160:
"""
Get the owner of the specified token.
The parameter token_id SHOULD be a valid NFT ID (64 bytes maximum).
:param token_id: the id of a token
:type token_id: str
"""
assert len(token_id) <= 64
owner = UInt160()
token_bytes = storage.get(account_prefix_key + token_id)
if len(token_bytes) != 0:
token = cast(NFT, deserialize(token_bytes))
owner = token.owner
return owner
def deserialize_arg() -> Any:
return deserialize(1)
def deserialize_arg(arg: bytes) -> Any:
return deserialize(arg)
def deserialize_user_class(arg: bytes) -> Example:
user_class = cast(Example, deserialize(arg))
return user_class
def get_account(account: UInt160) -> Optional[Account]:
account_bytes = storage.get(PREFIX_ACCOUNT + account)
if len(account_bytes) == 0:
return None
return cast(Account, deserialize(account_bytes))