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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 create_unsigned_transaction(cls, *, nonce: int, gas_price: int, gas: int, to: Address, value: int, data: bytes) -> 'BaseUnsignedTransaction': """ Proxy for instantiating an unsigned transaction for this VM. """

        return cls.get_transaction_class().create_unsigned_transaction(
            nonce=nonce,
            gas_price=gas_price,
            gas=gas,
            to=to,
            value=value,
            data=data
        )