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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 creator(entry, config):
 """Creator function for creating an instance of a Bash."""

        template_file = os.path.join(os.path.dirname(__file__), 'templates/docker-container.sh.j2')

        with open(template_file) as handle:
            template = handle.read()
            # all fields are re-rendered via the Bash script
            wrapped_script = render(template, container={
                'image': 'centos:7' if 'image' not in entry else entry['image'],
                'remove': True if 'remove' not in entry else str(entry['remove']).lower(),
                'background': False if 'background' not in entry else str(entry['background']).lower(),
                'mount': False if 'mount' not in entry else str(entry['mount']).lower(),
                'network': '' if 'network' not in entry else entry['network'],
                'labels': {} if 'labels' not in entry else entry['labels'],
                'script': config.script
            })

            config.script = wrapped_script

        return Container(config)