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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def Verify(self, completely=False):
 """ Verify the integrity of the block. Args: completely: (Not functional at this time). Returns: bool: True if valid. False otherwise. """

        res = super(Block, self).Verify()
        if not res:
            return False

        from neo.Blockchain import GetBlockchain, GetConsensusAddress

        # first TX has to be a miner transaction. other tx after that cant be miner tx
        if self.Transactions[0].Type != TransactionType.MinerTransaction:
            return False
        for tx in self.Transactions[1:]:
            if tx.Type == TransactionType.MinerTransaction:
                return False

        if completely:
            bc = GetBlockchain()

            if self.NextConsensus != GetConsensusAddress(bc.GetValidators(self.Transactions).ToArray()):
                return False

            for tx in self.Transactions:
                if not tx.Verify():
                    pass
            logger.error("Blocks cannot be fully validated at this moment.  please pass completely=False")
            raise NotImplementedError()
            # do this below!
            # foreach(Transaction tx in Transactions)
            # if (!tx.Verify(Transactions.Where(p = > !p.Hash.Equals(tx.Hash)))) return false;
            # Transaction tx_gen = Transactions.FirstOrDefault(p= > p.Type == TransactionType.MinerTransaction);
            # if (tx_gen?.Outputs.Sum(p = > p.Value) != CalculateNetFee(Transactions)) return false;

        return True