def get_contacts(self, page=1):
        contacts_url = 'contacts' + self.format
        url = self.base_url + contacts_url
        params = urllib.urlencode({
            'page': page,
        })
        # Append parameters
        full_url = url + '?' + params

        req = urllib2.Request(full_url, headers=self.header)
        response = urllib2.urlopen(req)
        data = response.read()

        return data
This handles setting the build_item attribute.
dataset/ETHPy150Open npinger/base-crm-api-client/base_client.py/BaseAPIService.get_contacts--crossover with--dataset/ETHPy150Open shinymud/ShinyMUD/src/shinymud/models/item_types.py/ItemType._set_build_item