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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 load_model_class(repo, content_type):
 """ Return a model class for a content type in a repository. :param Repo repo: The git repository. :param str content_type: The content type to list :returns: class """

    schema = get_schema(repo, content_type).to_json()
    return deserialize(schema, module_name=schema['namespace'])