function Mailchimp(api_key) {
var api_key_regex = /.+\-.+/
if (!api_key_regex.test(api_key)) {
throw new Error('missing or invalid api key: ' + api_key)
}
this.__api_key = api_key;
this.__base_url = "https://"+ this.__api_key.split('-')[1] + ".api.mailchimp.com/3.0"
}n/a