init static method
void
init({})
Implementation
static void init({
required String clientIdParam,
required String clientSecretParam,
required String merchantKeyParam,
required String callbackUrlParam,
bool sandbox = true,
}) {
clientId = clientIdParam;
clientSecret = clientSecretParam;
merchantKey = merchantKeyParam;
callbackUrl = callbackUrlParam;
isSandbox = sandbox;
}