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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 unwrap(self, token=None):
 """Return the original response inside the given wrapping token. Unlike simply reading cubbyhole/response (which is deprecated), this endpoint provides additional validation checks on the token, returns the original value on the wire rather than a JSON string representation of it, and ensures that the response is properly audit-logged. Supported methods: POST: /sys/wrapping/unwrap. Produces: 200 application/json :param token: Specifies the wrapping token ID. This is required if the client token is not the wrapping token. Do not use the wrapping token in both locations. :type token: str | unicode :return: The JSON response of the request. :rtype: dict """

        params = {}
        if token is not None:
            params['token'] = token

        api_path = '/v1/sys/wrapping/unwrap'
        response = self._adapter.post(
            url=api_path,
            json=params,
        )

        return response.json()