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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 getaccountaddress(self, user_id=""):
 """Get the coin address associated with a user id. If the specified user id does not yet have an address for this coin, then generate one. Args: user_id (str):
 this user's unique identifier Returns: str: Base58Check address for this account """

        address = self.rpc.call("getaccountaddress", user_id)
        self.logger.debug("Your", self.coin, "address is", address)
        return address