title: Importing data from firestore to python
body: <p>I need to transfer some collections from firestore to pandas dataframe for analysis ans have some problems</p>
  <p>Method from firebase docs :</p>
  <p>docs = db.collection(COLLECTION_NAME).stream()</p>
  <pre><code>for doc in docs:
      print(f'{doc.id} =&gt; {doc.to_dict()}')
  </code></pre>
  <p>my collection contains 100k elements, and when iterator at loop is near 50k i receive an error :</p>
  <pre><code>'_UnaryStreamMultiCallable' object has no attribute '_retry' 
  </code></pre>
  <p>I load only one collection, wout parallel downloads</p>