def GetUnavailableBonus(self):
"""
Gets the total claimable amount of Gas in the wallet that is not available to claim
because it has not yet been spent
Returns:
Fixed8: the amount of Gas unavailable to claim
"""
height = Blockchain.Default().Height + 1
unspents = self.FindUnspentCoinsByAsset(Blockchain.SystemShare().Hash)
refs = [coin.Reference for coin in unspents]
unavailable_bonus = Blockchain.CalculateBonus(refs, height_end=height)
return unavailable_bonus
