def get_current_block_hash(self, is_full: bool = False) -> str:
        """
        This interface is used to get the hexadecimal hash value of the highest block in current network.

        Return:
            the hexadecimal hash value of the highest block in current network.
        """
        payload = self.generate_json_rpc_payload(RpcMethod.GET_CURRENT_BLOCK_HASH)
        response = self.__post(self.__url, payload)
        if is_full:
            return response
        return response['result']
This interface is used to get the hexadecimal hash value of the highest block in current network.

        Return:
            the hexadecimal hash value of the highest block in current network.