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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 validate(self, schema):
 """ Validate VDOM against given JSON Schema Raises ValidationError if schema does not match """

        try:
            validate(instance=self.to_dict(), schema=schema, cls=Draft4Validator)
        except ValidationError as e:
            raise ValidationError(_validate_err_template.format(VDOM_SCHEMA, e))