title: Issue in getting facebook ad campaign details using curl and python code
body: <p>Please help me in fixing curl command and python code. I am putting the secret key, but unable to get the <code>CAMPAIGN_ID</code>. I have created an ad for my facebook page, but couldn't find <code>CAMPAIGN_ID</code>, I have tried to use Ad id, but that also didn't work.</p>
  
  <pre><code>curl -G \
       -d "level=ad" \
       -d "fields=impressions,ad_id" \
       -d "access_token=&lt;ACCESS_TOKEN&gt;" \
       "https://graph.facebook.com/&lt;API_VERSION&gt;/&lt;CAMPAIGN_ID&gt;/insights"
  </code></pre>
  
  <p>I also used the python code below, but got a few errors.</p>
  
  <pre><code>from facebook_business.objects import AdCampaign
      campaign = AdCampaign('&lt;AD_CAMPAIGN_ID&gt;')
      params = {
                      'date_preset': AdCampaign.Preset.last_7_days,
      }
      insights = campaign.get_insights(params=params)
      print insights  
  </code></pre>
  
  <p>Below is the error:</p>
  
  <blockquote>
    <pre class="lang-py prettyprint-override"><code>traceback (most recent call last):
  File "fbAds2.py", line 1, in &lt;module&gt;
  from facebook_business.objects import AdCampaign
  ModuleNotFoundError: No module named 'facebook_business.objects'```
  </code></pre>
  </blockquote>