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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 _read_extensions(self, context):
 """Return list of extensions as str to be passed on to the Jinja2 env. If context does not contain the relevant info, return an empty list instead. """

        try:
            extensions = context['cookiecutter']['_extensions']
        except KeyError:
            return []
        else:
            return [str(ext) for ext in extensions]