def get_most_recent_singleton_coin_from_coin_spend(
coin_sol: CoinSpend) -> Optional[Coin]:
additions: List[Coin] = coin_sol.additions()
for coin in additions:
if coin.amount % 2 == 1:
return coin
return None
def make_child_solution(coin_spend: CoinSpend, new_coin: Optional[Coin] = None) -> CoinSpend:
new_puzzle_hash: bytes32 = token_bytes(32)
solution = "()"
puzzle = f"(q . ((51 0x{new_puzzle_hash.hex()} 1)))"
puzzle_prog = Program.to(binutils.assemble(puzzle))
solution_prog = Program.to(binutils.assemble(solution))
if new_coin is None:
new_coin = coin_spend.additions()[0]
sol: CoinSpend = CoinSpend(
new_coin,
SerializedProgram.from_program(puzzle_prog),
SerializedProgram.from_program(solution_prog),
)
return sol
def make_child_solution(coin_spend: CoinSpend,
new_coin: Optional[Coin] = None) -> CoinSpend:
# TODO: address hint error and remove ignore
# error: Incompatible types in assignment (expression has type "bytes", variable has type "bytes32")
# [assignment]
new_puzzle_hash: bytes32 = token_bytes(32) # type: ignore[assignment]
solution = "()"
puzzle = f"(q . ((51 0x{new_puzzle_hash.hex()} 1)))"
puzzle_prog = Program.to(binutils.assemble(puzzle))
solution_prog = Program.to(binutils.assemble(solution))
if new_coin is None:
new_coin = coin_spend.additions()[0]
sol: CoinSpend = CoinSpend(
new_coin,
SerializedProgram.from_program(puzzle_prog),
SerializedProgram.from_program(solution_prog),
)
return sol
