Add to docs

Author: slundberg

notebooks/tutorials/intro_to_guidance.ipynb

@@ -581,6 +581,25 @@
     "gpt35 + experts(query='What is the meaning of life?')"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Streaming\n",
+    "\n",
+    "Often you want to get the results of a generation as it is happening so you update an interface. You can do this programmatically using the `.stream()` method of model objects. This creates a `ModelStream` that you can use to accumulate updates. These updates don't get executed until you interate over then `ModelStream` object. When you iterate over the object you get lots of partially completed model objects as the guidance program is executed."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "for part in llama2.stream() + qa_bot(query):\n",
+    "    part # do something with the partially executed lm"
+   ]
+  },
   {
    "attachments": {},
    "cell_type": "markdown",