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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 make_instance(cls, data):
 """Validate the data and create a model instance from the data. Args: data (dict):
 The unserialized data to insert into the new model instance through it's constructor. Returns: peewee.Model|sqlalchemy.Model: The model instance with it's data inserted into it. Raises: AttributeError: This is raised if ``Meta.model`` isn't set on the schema's definition. """

        schema = cls()

        if not hasattr(schema.Meta, 'model'):
            raise AttributeError("In order to make an instance, a model for "
                                 "the schema must be defined in the Meta "
                                 "class.")

        serialized_data = schema.load(data).data

        return cls.Meta.model(**serialized_data)