diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4a83bca..f8011bf 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -54,7 +54,7 @@ jobs:
         uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-        #   fail_ci_if_error: true
+          # fail_ci_if_error: true
 
   # tests_mac:
   #   needs: linter
@@ -91,9 +91,5 @@ jobs:
   #       run: python.exe -m pip install --upgrade pip
   #     - name: Install project
   #       run: pip install -e .[test]
-  #     - name: Set OPENAI API Key
-  #       run: |
-  #         chcp 65001
-  #         echo "OPENAI_API_KEY=dummy" >> $env:GITHUB_ENV
   #     - name: run tests
-  #       run: pytest -s -vvvv -l --tb=long tests
+  #       run: set OPENAI_API_KEY=dummy & pytest -s -vvvv -l --tb=long tests
diff --git a/Makefile b/Makefile
index 28bcd85..bea5b68 100644
--- a/Makefile
+++ b/Makefile
@@ -39,7 +39,8 @@ lint:             ## Run pep8, black, mypy linters.
 
 .PHONY: test
 test: lint        ## Run tests and generate coverage report.
-	$(ENV_PREFIX)pytest -v --cov-config .coveragerc --cov=readme_ready -l --tb=short --maxfail=1 tests/
+	$(ENV_PREFIX)
+	$(ENV_PREFIX)OPENAI_API_KEY=dummy pytest -v --cov-config .coveragerc --cov=readme_ready -l --tb=short --maxfail=1 tests/
 	$(ENV_PREFIX)coverage xml
 	$(ENV_PREFIX)coverage html
 
diff --git a/README.md b/README.md
index b68cd4d..638e508 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,8 @@ $ export OPENAI_API_KEY=<YOUR_OPENAI_API_KEY>
 $ export HF_TOKEN=<YOUR_HUGGINGFACE_TOKEN>
 ```
 
+Set `OPENAI_API_KEY=dummy` to use only open-source models.
+
 ### Command-Line
 
 ```bash
@@ -59,17 +61,25 @@ $ readme_ready
 ### In Code
 
 ```py
-from readme_ready import query
-from readme_ready import index
-
-repo_config = {
-    "name": <NAME>, # Replace <NAME>
-    "root": <PROJECT_ROOT>, # Replace <PROJECT_ROOT>
-    "repository_url": <PROJECT_URL>, # Replace <PROJECT_URL>
-    "output": <OUTPUT_DIR>, # Replace <OUTPUT_DIR>
-    "llms": [<MODEL_NAME_OR_PATH>], # Replace <MODEL_NAME_OR_PATH>
-    "peft_model_path": <PEFT_MODEL_NAME_OR_PATH>, # Replace <PEFT_MODEL_NAME_OR_PATH>
-    "ignore": [
+from readme_ready.query import query
+from readme_ready.index import index
+from readme_ready.types import (
+    AutodocReadmeConfig,
+    AutodocRepoConfig,
+    AutodocUserConfig,
+    LLMModels,
+)
+
+model = LLMModels.LLAMA2_7B_CHAT_HF # Choose model from supported models
+
+repo_config = AutodocRepoConfig (
+    name = "<NAME>", # Replace <NAME>
+    root = "<PROJECT_ROOT>", # Replace <PROJECT_ROOT>
+    repository_url = "<PROJECT_URL>", # Replace <PROJECT_URL>
+    output = "<OUTPUT_DIR>", # Replace <OUTPUT_DIR>
+    llms = [model],
+    peft_model_path = "<PEFT_MODEL_NAME_OR_PATH>", # Replace <PEFT_MODEL_NAME_OR_PATH>
+    ignore = [
         ".*",
         "*package-lock.json",
         "*package.json",
@@ -82,24 +92,32 @@ repo_config = {
         "*.mdx",
         "*.toml"
     ],
-    "file_prompt": "",
-    "folder_prompt": "",
-    "chat_prompt": "",
-    "content_type": "docs",
-    "target_audience": "smart developer",
-    "link_hosted": True,
-    "priority": None,
-    "max_concurrent_calls": 50,
-    "add_questions": False
-}
-
-user_config = {
-    "llms": [model]
-}
-index.index(**repo_config)
-query.generate_readme(**repo_config, **user_config)
+    file_prompt = "",
+    folder_prompt = "",
+    chat_prompt = "",
+    content_type = "docs",
+    target_audience = "smart developer",
+    link_hosted = True,
+    priority = None,
+    max_concurrent_calls = 50,
+    add_questions = False,
+    device = "cuda", # Select device "cuda" or  "cpu"
+)
+
+user_config = AutodocUserConfig(
+    llms = [model]
+)
+
+readme_config = AutodocReadmeConfig(
+    headings = "# Description, # Requirements, # Installation, # Usage, # Contributing, # License"
+)
+
+index.index(repo_config)
+query.generate_readme(repo_config, user_config, readme_config)
 ```
 
+Run the sample script in the `examples/example.py` to see a typical code usage.
+
 ### Finetuning
 
 For finetuning on custom datasets, follow the instructions below.
diff --git a/examples/example.py b/examples/example.py
new file mode 100644
index 0000000..333d1be
--- /dev/null
+++ b/examples/example.py
@@ -0,0 +1,56 @@
+"""
+Example
+"""
+from readme_ready.query import query
+from readme_ready.index import index
+from readme_ready.types import (
+    AutodocReadmeConfig,
+    AutodocRepoConfig,
+    AutodocUserConfig,
+    LLMModels,
+)
+
+model = LLMModels.TINYLLAMA_1p1B_CHAT_GGUF # Choose model from supported models
+
+repo_config = AutodocRepoConfig (
+    name = "readmy_ready",
+    root = "./readme_ready",
+    repository_url = "https://github.com/souradipp76/ReadMeReady",
+    output = "./output/readmy_ready",
+    llms = [model],
+    peft_model_path = None,
+    ignore = [
+        ".*",
+        "*package-lock.json",
+        "*package.json",
+        "node_modules",
+        "*dist*",
+        "*build*",
+        "*test*",
+        "*.svg",
+        "*.md",
+        "*.mdx",
+        "*.toml"
+    ],
+    file_prompt = "",
+    folder_prompt = "",
+    chat_prompt = "",
+    content_type = "docs",
+    target_audience = "smart developer",
+    link_hosted = True,
+    priority = None,
+    max_concurrent_calls = 50,
+    add_questions = False,
+    device = "cpu",
+)
+
+user_config = AutodocUserConfig(
+    llms = [model]
+)
+
+readme_config = AutodocReadmeConfig(
+    headings = "# Description, # Requirements, # Installation, # Usage, # Contributing, # License"
+)
+
+index.index(repo_config)
+query.generate_readme(repo_config, user_config, readme_config)
\ No newline at end of file
diff --git a/readme_ready/main.py b/readme_ready/main.py
index 655df03..311597c 100644
--- a/readme_ready/main.py
+++ b/readme_ready/main.py
@@ -87,7 +87,7 @@ def url_validator(x):
         ).ask()
 
     device = questionary.select(
-        message="Device?", choices=["cpu", "gpu"], default="cpu"
+        message="Device?", choices=["cpu", "cuda"], default="cpu"
     ).ask()
 
     match model_name: