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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 getbalance(self, **params):
 """Get Account Asset Balance API Type -------- HTTP Private API Docs ---- https://lightning.bitflyer.jp/docs?lang=en#get-account-asset-balance """

        if not all([self.api_key, self.api_secret]):
            raise AuthException()

        endpoint = "/v1/me/getbalance"
        return self.request(endpoint, params=params)