def get_secret(self, secure_data_path, key, version=None):
        """
        (Deprecated)Return the secret based on the secure data path and key

        This method is deprecated because it misleads users into thinking they're only getting one value from Cerberus
        when in reality they're getting all values, from which a single value is returned.
        Use get_secrets_data(secure_data_path)[key] instead.
        (See https://github.com/Nike-Inc/cerberus-python-client/issues/18)
        """
        warnings.warn(
            "get_secret is deprecated, use get_secrets_data instead",
            DeprecationWarning
        )
        secret_resp_json = self._get_secrets(secure_data_path, version)

        if key in secret_resp_json['data']:
            return secret_resp_json['data'][key]
        else:
            raise CerberusClientException("Key '%s' not found" % key)