replace deprecated "get_image_uri" with "sagemaker.image_uris.retrieve" (aws#1984)

* update names of renamed serializers/deserializers in v2

* Update LDA-Introduction.ipynb

replace "<your_s3_bucket_name_here>" with default bucket

* Update LDA-Introduction.ipynb

add line break

* replace deprecated "get_image_uri" with "sagemaker.image_uris.retrieve"

* replace deprecated "get_image_uri" with "sagemaker.image_uris.retrieve" for "pca_mnist"

* update names of renamed serializers/deserializers in v2 for "pca_mnist"

Co-authored-by: Sean Lee <seule@amazon.com>

Author: seanlee10

introduction_to_amazon_algorithms/pca_mnist/pca_mnist.ipynb

@@ -238,9 +238,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from sagemaker.amazon.amazon_estimator import get_image_uri\n",
+    "from sagemaker.image_uris import retrieve\n",
     "\n",
-    "container = get_image_uri(boto3.Session().region_name, \"pca\")"
+    "container = retrieve(framework=\"pca\", region=region)"
    ]
   },
   {
@@ -318,11 +318,12 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from sagemaker.predictor import csv_serializer, json_deserializer\n",
+    "from sagemaker.serializers import CSVSerializer\n",
+    "from sagemaker.deserializers import JSONDeserializer\n",
     "\n",
     "pca_predictor.ContentType = \"text/csv\"\n",
-    "pca_predictor.serializer = csv_serializer\n",
-    "pca_predictor.deserializer = json_deserializer"
+    "pca_predictor.serializer = CSVSerializer()\n",
+    "pca_predictor.deserializer = JSONDeserializer()"
    ]
   },
   {
@@ -429,4 +430,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
+}

introduction_to_amazon_algorithms/xgboost_mnist/xgboost_mnist.ipynb

@@ -239,9 +239,9 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from sagemaker.amazon.amazon_estimator import get_image_uri\n",
+    "from sagemaker.image_uris import retrieve\n",
     "\n",
-    "container = get_image_uri(region, \"xgboost\", \"1.0-1\")"
+    "container = retrieve(framework=\"xgboost\", region=region, version='1.0-1')"
    ]
   },
   {
@@ -801,4 +801,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
+}