docs: fix import path for FlashrankRerank example notebook (#19146)

**Description:** Fixes the import paths for the `FlashrankRerank`
example notebook.
 **Issue:** #19139 
 **Dependencies:** None
 **Twitter handle:** n/a

---------

Co-authored-by: Simon Stone <simon.stone@dartmouth.edu>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>

docs/docs/integrations/retrievers/flashrank-reranker.ipynb

@@ -28,17 +28,17 @@
    },
    "outputs": [],
    "source": [
-    "% pip install --upgrade --quiet  flashrank\n",
+    "%pip install --upgrade --quiet  flashrank\n",
-    "% pip install --upgrade --quiet  faiss\n",
+    "%pip install --upgrade --quiet  faiss\n",
     "\n",
     "# OR  (depending on Python version)\n",
     "\n",
-    "% pip install --upgrade --quiet  faiss_cpu"
+    "%pip install --upgrade --quiet  faiss_cpu"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 2,
    "metadata": {
     "collapsed": false,
     "jupyter": {
@@ -73,7 +73,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 3,
    "metadata": {
     "collapsed": false,
     "jupyter": {
@@ -90,7 +90,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 4,
    "metadata": {
     "collapsed": false,
     "jupyter": {
@@ -247,14 +247,6 @@
       "----------------------------------------------------------------------------------------------------\n",
       "Document 15:\n",
       "\n",
-      "My plan to fight inflation will lower your costs and lower the deficit. \n",
-      "\n",
-      "17 Nobel laureates in economics say my plan will ease long-term inflationary pressures. Top business leaders and most Americans support my plan. And here’s the plan: \n",
-      "\n",
-      "First – cut the cost of prescription drugs. Just look at insulin. One in ten Americans has diabetes. In Virginia, I met a 13-year-old boy named Joshua Davis.\n",
-      "----------------------------------------------------------------------------------------------------\n",
-      "Document 16:\n",
-      "\n",
       "And soon, we’ll strengthen the Violence Against Women Act that I first wrote three decades ago. It is important for us to show the nation that we can come together and do big things. \n",
       "\n",
       "So tonight I’m offering a Unity Agenda for the Nation. Four big things we can do together.  \n",
@@ -263,15 +255,15 @@
       "\n",
       "There is so much we can do. Increase funding for prevention, treatment, harm reduction, and recovery.\n",
       "----------------------------------------------------------------------------------------------------\n",
-      "Document 17:\n",
+      "Document 16:\n",
       "\n",
-      "So let’s not abandon our streets. Or choose between safety and equal justice. \n",
+      "My plan to fight inflation will lower your costs and lower the deficit. \n",
       "\n",
-      "Let’s come together to protect our communities, restore trust, and hold law enforcement accountable. \n",
+      "17 Nobel laureates in economics say my plan will ease long-term inflationary pressures. Top business leaders and most Americans support my plan. And here’s the plan: \n",
       "\n",
-      "That’s why the Justice Department required body cameras, banned chokeholds, and restricted no-knock warrants for its officers.\n",
+      "First – cut the cost of prescription drugs. Just look at insulin. One in ten Americans has diabetes. In Virginia, I met a 13-year-old boy named Joshua Davis.\n",
       "----------------------------------------------------------------------------------------------------\n",
-      "Document 18:\n",
+      "Document 17:\n",
       "\n",
       "My plan will not only lower costs to give families a fair shot, it will lower the deficit. \n",
       "\n",
@@ -281,6 +273,14 @@
       "\n",
       "We’re going after the criminals who stole billions in relief money meant for small businesses and millions of Americans.\n",
       "----------------------------------------------------------------------------------------------------\n",
+      "Document 18:\n",
+      "\n",
+      "So let’s not abandon our streets. Or choose between safety and equal justice. \n",
+      "\n",
+      "Let’s come together to protect our communities, restore trust, and hold law enforcement accountable. \n",
+      "\n",
+      "That’s why the Justice Department required body cameras, banned chokeholds, and restricted no-knock warrants for its officers.\n",
+      "----------------------------------------------------------------------------------------------------\n",
       "Document 19:\n",
       "\n",
       "I understand. \n",
@@ -340,16 +340,25 @@
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 5,
    "metadata": {
     "collapsed": false,
     "jupyter": {
      "outputs_hidden": false
     }
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[0, 5, 3]\n"
+     ]
+    }
+   ],
    "source": [
-    "from langchain.retrievers import ContextualCompressionRetriever, FlashrankRerank\n",
+    "from langchain.retrievers import ContextualCompressionRetriever\n",
+    "from langchain.retrievers.document_compressors import FlashrankRerank\n",
     "from langchain_openai import ChatOpenAI\n",
     "\n",
     "llm = ChatOpenAI(temperature=0)\n",
@@ -379,7 +388,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 20,
+   "execution_count": 6,
    "metadata": {
     "collapsed": false,
     "jupyter": {
@@ -399,6 +408,16 @@
       "----------------------------------------------------------------------------------------------------\n",
       "Document 2:\n",
       "\n",
+      "He met the Ukrainian people. \n",
+      "\n",
+      "From President Zelenskyy to every Ukrainian, their fearlessness, their courage, their determination, inspires the world. \n",
+      "\n",
+      "Groups of citizens blocking tanks with their bodies. Everyone from students to retirees teachers turned soldiers defending their homeland. \n",
+      "\n",
+      "In this struggle as President Zelenskyy said in his speech to the European Parliament “Light will win over darkness.” The Ukrainian Ambassador to the United States is here tonight.\n",
+      "----------------------------------------------------------------------------------------------------\n",
+      "Document 3:\n",
+      "\n",
       "And tonight, I’m announcing that the Justice Department will name a chief prosecutor for pandemic fraud. \n",
       "\n",
       "By the end of this year, the deficit will be down to less than half what it was before I took office.  \n",
@@ -409,19 +428,7 @@
       "\n",
       "I’m a capitalist, but capitalism without competition isn’t capitalism. \n",
       "\n",
-      "It’s exploitation—and it drives up prices.\n",
+      "It’s exploitation—and it drives up prices.\n"
-      "----------------------------------------------------------------------------------------------------\n",
-      "Document 3:\n",
-      "\n",
-      "As Ohio Senator Sherrod Brown says, “It’s time to bury the label “Rust Belt.” \n",
-      "\n",
-      "It’s time. \n",
-      "\n",
-      "But with all the bright spots in our economy, record job growth and higher wages, too many families are struggling to keep up with the bills.  \n",
-      "\n",
-      "Inflation is robbing them of the gains they might otherwise feel. \n",
-      "\n",
-      "I get it. That’s why my top priority is getting prices under control.\n"
      ]
     }
    ],
@@ -443,7 +450,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 18,
+   "execution_count": 7,
    "metadata": {
     "collapsed": false,
     "jupyter": {
@@ -459,7 +466,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 19,
+   "execution_count": 8,
    "metadata": {
     "collapsed": false,
     "jupyter": {
@@ -471,10 +478,10 @@
      "data": {
       "text/plain": [
        "{'query': 'What did the president say about Ketanji Brown Jackson',\n",
-       " 'result': \"The President said that Ketanji Brown Jackson is one of our nation's top legal minds and will continue Justice Breyer's legacy of excellence.\"}"
+       " 'result': \"The President mentioned that Ketanji Brown Jackson is one of the nation's top legal minds and will continue Justice Breyer's legacy of excellence.\"}"
       ]
      },
-     "execution_count": 19,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -500,7 +507,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.12"
+   "version": "3.12.2"
   }
  },
  "nbformat": 4,