public CampaignStartResponse StartCampaign(int campaignId)
{
var campaignResponse = default(CampaignStartResponse);
(CampaignStartResponse result, string statusCode, string message) = _api.Put <int, CampaignStartResponse>($"api/v1/oauth/messenger/campaign/{campaignId}/start", campaignId);
if (result != null)
{
campaignResponse = result;
}
return(campaignResponse);
}
