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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 value_report(self, address, zipcode, report_type="full", format_type="json"):
 """Call the value_report component Value Report only supports a single address. Args: - address - zipcode Kwargs: - report_type - "full" or "summary". Default is "full". - format_type - "json", "pdf", "xlsx" or "all". Default is "json". """

        query_params = {
            "report_type": report_type,
            "format": format_type,
            "address": address,
            "zipcode": zipcode
        }

        return self._api_client.fetch_synchronous("property/value_report", query_params)