def METHOD_NAME(self):
    """Test case for get_pet_by_id
    Find pet by ID
    """
    headers = { 
        'Accept': 'application/json',
        'api_key': 'special-key',
    }
    response = self.client.open(
        '/v2/pet/{pet_id}'.format(pet_id=56),
        method='GET',
        headers=headers)
    self.assert200(response,
                   'Response body is : ' + response.data.decode('utf-8'))