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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 connect(self, region, **kw_params):
 """Connect to a EC2. :param region: The name of the region to connect to. :type region: str :param kw_params: :type kw_params: dict """

        self.ec2 = boto.ec2.connect_to_region(region, **kw_params)
        if not self.ec2:
            raise EC2ManagerException('Unable to connect to region "%s"' % region)
        self.remote_images.clear()

        if self.images and any(('image_name' in img and 'image_id' not in img) for img in self.images.values()):
            for img in self.images.values():
                if 'image_name' in img and 'image_id' not in img:
                    img['image_id'] = self.resolve_image_name(img.pop('image_name'))