<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def create(self, name, network):
 """Create a new Account object and add it to this Accounts collection. Args: name (str):
 Account name network (str):
 Type of cryptocurrency. Can be one of, 'bitcoin', ' bitcoin_testnet', 'litecoin', 'dogecoin'. Returns: The new round.Account """

        if not network in SUPPORTED_NETWORKS:
            raise ValueError('Network not valid!')
        account = self.wrap(self.resource.create(dict(name=name,
                                                      network=network)))
        self.add(account)
        return account