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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 call(self, service, method, *args, **kwargs):
 """Make a SoftLayer API call. :param method: the method to call on the service :param \\*args: (optional) arguments for the remote call :param id: (optional) id for the resource :param mask: (optional) object mask :param dict filter: (optional) filter dict :param dict headers: (optional) optional XML-RPC headers :param boolean compress: (optional) Enable/Disable HTTP compression :param dict raw_headers: (optional) HTTP transport headers :param int limit: (optional) return at most this many results :param int offset: (optional) offset results by this many :param boolean iter: (optional) if True, returns a generator with the results :param bool verify: verify SSL cert :param cert: client certificate path Usage: """

        if kwargs.pop('iter', False):
            # Most of the codebase assumes a non-generator will be returned, so casting to list
            # keeps those sections working
            return list(self.iter_call(service, method, *args, **kwargs))

        invalid_kwargs = set(kwargs.keys()) - VALID_CALL_ARGS
        if invalid_kwargs:
            raise TypeError(
                'Invalid keyword arguments: %s' % ','.join(invalid_kwargs))

        if self._prefix and not service.startswith(self._prefix):
            service = self._prefix + service

        http_headers = {'Accept': '*/*'}

        if kwargs.get('compress', True):
            http_headers['Accept-Encoding'] = 'gzip, deflate, compress'
        else:
            http_headers['Accept-Encoding'] = None

        if kwargs.get('raw_headers'):
            http_headers.update(kwargs.get('raw_headers'))

        request = transports.Request()
        request.service = service
        request.method = method
        request.args = args
        request.transport_headers = http_headers
        request.identifier = kwargs.get('id')
        request.mask = kwargs.get('mask')
        request.filter = kwargs.get('filter')
        request.limit = kwargs.get('limit')
        request.offset = kwargs.get('offset')
        if kwargs.get('verify') is not None:
            request.verify = kwargs.get('verify')

        if self.auth:
            extra_headers = self.auth.get_headers()
            if extra_headers:
                warnings.warn("auth.get_headers() is deprecated and will be "
                              "removed in the next major version",
                              DeprecationWarning)
                request.headers.update(extra_headers)

            request = self.auth.get_request(request)

        request.headers.update(kwargs.get('headers', {}))
        return self.transport(request)