diff --git a/.github/renovate.json5 b/.github/renovate.json5
index 0cc77569..531cae20 100644
--- a/.github/renovate.json5
+++ b/.github/renovate.json5
@@ -1,9 +1,4 @@
-// Dependency Update Configuration
-//
-// See https://docs.renovatebot.com/configuration-options/
-// See https://json5.org/ for JSON5 syntax
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:base", // https://docs.renovatebot.com/presets-config/#configbase
     ":semanticCommits", // https://docs.renovatebot.com/presets-default/#semanticcommits
@@ -13,7 +8,7 @@
     ":prConcurrentLimitNone", // View complete backlog as PRs. https://docs.renovatebot.com/presets-default/#prconcurrentlimitnone
     ":prNotPending", // https://docs.renovatebot.com/presets-default/#prnotpending
     ":prHourlyLimitNone", // https://docs.renovatebot.com/presets-default/#prhourlylimitnone
-    "docker:enableMajor", // https://docs.renovatebot.com/presets-docker/#dockerenablemajor
+    ":preserveSemverRanges",
   ],
 
   // Synchronized with a 2 week sprint cycle and outside business hours.
@@ -35,25 +30,8 @@
   "dependencyDashboardLabels": [
     "type: process",
   ],
-
-  "constraints": {
-    "python": "3.11"
-  },
-
-  "pip_requirements": {
-    "fileMatch": ["requirements-test.txt"]
-  },
   "packageRules": [
 
-    // Tooling & Runtime behaviors.
-    {
-      // Covers Dockerfiles, cloudbuild.yaml, and other docker-based tools.
-      "groupName": "Docker Runtimes",
-      "matchDatasources": ["docker"],
-      // TODO: Uncomment if your Dockerfiles are not included in samples.
-      // Increases build repeatability, image cache use, and supply chain security.
-      // "pinDigests": true,
-    },
     {
        "groupName": "GitHub Actions",
        "matchManagers": ["github-actions"],
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 7358c119..7b866f5b 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -34,6 +34,23 @@ jobs:
     if: "${{ (github.event.action != 'labeled' && github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name) || github.event.label.name == 'tests: run' }}"
 
     steps:
+      - name: Remove PR label
+        if: "${{ github.event.action == 'labeled' && github.event.label.name == 'tests: run' }}"
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            try {
+              await github.rest.issues.removeLabel({
+                name: 'tests: run',
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.payload.pull_request.number
+              });
+            } catch (e) {
+              console.log('Failed to remove label. Another job may have already removed it!');
+            }
+            
       - name: Checkout Repository
         uses: actions/checkout@v3
 
@@ -43,6 +60,9 @@ jobs:
           python-version: "3.11"
 
       - name: Install requirements
+        run: pip install -r requirements.txt
+
+      - name: Install module (and test requirements)
         run: pip install -e .[test]
 
       - name: Run linters
diff --git a/.gitignore b/.gitignore
index d083ea1d..3c0f60e6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,6 +51,7 @@ docs.metadata
 # Virtual environment
 env/
 venv/
+.python-version
 
 # Test logs
 coverage.xml
diff --git a/README.md b/README.md
index b5e72f76..0b5f0bca 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Spanner for LangChain
 
-*Description*
+This package contains the [LangChain][langchain] integrations for Spanner.
 
 > **🧪 Preview:** This feature is covered by the Pre-GA Offerings Terms of the Google Cloud Terms of Service. Please note that pre-GA products and features might have limited support, and changes to pre-GA products and features might not be compatible with other pre-GA versions. For more information, see the [launch stage descriptions](https://cloud.google.com/products#product-launch-stages)
 
@@ -33,12 +33,42 @@ source <your-env>/bin/activate
 <your-env>/bin/pip install langchain-google-spanner
 ```
 
-## Usage
+## Document Loader Usage
+
+Use a document loader to load data as LangChain `Document`s.
+
+```python
+from langchain_google_spanner import SpannerLoader
+
+
+loader = SpannerLoader(
+    instance_id="my-instance",
+    database_id="my-database",
+    query="SELECT * from my_table_name"
+)
+docs = loader.lazy_load()
+```
+
+See the full [Document Loader][loader] tutorial.
+
+## Chat Message History Usage
+
+Use `ChatMessageHistory` to store messages and provide conversation history to LLMs.
 
 ```python
-from langchain_google_spanner import SpannerVectorstore, SpannerLoader, SpannerChatMessageHistory
+from langchain_google_spanner import SpannerChatMessageHistory
+
+
+history = SpannerChatMessageHistory(
+    instance_id="my-instance",
+    database_id="my-database",
+    table_name="my_table_name",
+    session_id="my-session_id"
+)
 ```
 
+See the full [Chat Message History][history] tutorial.
+
 ## Contributing
 
 Contributions to this library are always welcome and highly encouraged.
@@ -61,4 +91,7 @@ This is not an officially supported Google product.
 [billing]: https://cloud.google.com/billing/docs/how-to/modify-project#enable_billing_for_a_project
 [api]: https://console.cloud.google.com/flows/enableapi?apiid=spanner.googleapis.com
 [auth]: https://googleapis.dev/python/google-api-core/latest/auth.html
-[venv]: https://virtualenv.pypa.io/en/latest/
\ No newline at end of file
+[venv]: https://virtualenv.pypa.io/en/latest/
+[loader]: ./docs/document_loader.ipynb
+[history]: ./docs/chat_message_history.ipynb
+[langchain]: https://github.com/langchain-ai/langchain
diff --git a/integration.cloudbuild.yaml b/integration.cloudbuild.yaml
index bc991c43..1797b270 100644
--- a/integration.cloudbuild.yaml
+++ b/integration.cloudbuild.yaml
@@ -14,6 +14,11 @@
 
 steps:
   - id: Install dependencies
+    name: python:3.11
+    entrypoint: pip
+    args: ["install", "--user", "-r", "requirements.txt"]
+
+  - id: Install module (and test requirements)
     name: python:3.11
     entrypoint: pip
     args: ["install", ".[test]", "--user"]
diff --git a/pyproject.toml b/pyproject.toml
index 9b40ed2c..db8f9718 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,9 +5,13 @@ description = "LangChain integrations for Google Cloud Spanner"
 readme = "README.md"
 license = {file = "LICENSE"}
 requires-python = ">=3.8"
+authors = [
+    {name = "Google LLC", email = "googleapis-packages@google.com"}
+]
 dependencies = [
-    "langchain==0.1.1",
-    "google-cloud-spanner==3.41.0"
+    "langchain-core>=0.1.25, <1.0.0",
+    "langchain-community>=0.0.18, <1.0.0",
+    "google-cloud-spanner>=3.41.0, <4.0.0"
 ]
 
 [tool.setuptools.dynamic]
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..3c74edf4
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+langchain-core==0.1.25
+langchain-community==0.0.21
+google-cloud-spanner==3.42.0
diff --git a/src/langchain_google_spanner/py.typed b/src/langchain_google_spanner/py.typed
new file mode 100644
index 00000000..e69de29b