feat: add docstring and type hint for all funcs

gemini/core.py

@@ -41,6 +41,7 @@ class Gemini:
         auto_cookies (bool): Automatically manage cookies if True.
         timeout (int): Timeout for requests, defaults to 30 seconds.
         proxies (Optional[dict]): Proxy configuration for requests, if any.
+        rcid (str): Response candidate ID.
     """
 
     def __init__(
@@ -179,6 +180,7 @@ def _construct_payload(
 
         Parameters:
             prompt (str): The user prompt to send.
+            image (Union[bytes, str]): The image data as bytes or file path. Supported formats: webp, jpeg, png.
             nonce (str): A one-time token used for request verification.
 
         Returns:
@@ -261,6 +263,15 @@ def generate_content(
         return self._create_model_output(parsed_response)
 
     def _create_model_output(self, parsed_response: dict) -> GeminiModelOutput:
+        """
+        Creates model output from parsed response.
+
+        Args:
+            parsed_response (dict): The parsed response data.
+
+        Returns:
+            GeminiModelOutput: The model output containing metadata, candidates, and response dictionary.
+        """
         candidates = self.collect_candidates(parsed_response)
         metadata = parsed_response.get("metadata", [])
         try:
@@ -277,6 +288,15 @@ def _create_model_output(self, parsed_response: dict) -> GeminiModelOutput:
 
     @staticmethod
     def collect_candidates(data):
+        """
+        Collects candidate data from parsed response.
+
+        Args:
+            data: The parsed response data.
+
+        Returns:
+            List: A list of GeminiCandidate objects.
+        """
         collected = []
         stack = [data]
 

gemini/src/misc/constants.py

@@ -13,6 +13,8 @@ class Tool(Enum):
     YOUTUBE = ["youtube_tool"]
 
 
+IMAGE_PUSH_ID = "feeds/mcudyrk2a4khkz"
+
 DEFAULT_LANGUAGE = "en"
 POST_ENDPOINT = "https://gemini.google.com/_/BardChatUi/data/assistant.lamda.BardFrontendService/StreamGenerate"
 HOST = "https://gemini.google.com"

gemini/src/misc/utils.py

@@ -2,7 +2,7 @@
 import json
 import requests
 from typing import Union
-from .constants import REPLIT_SUPPORT_PROGRAM_LANGUAGES
+from .constants import REPLIT_SUPPORT_PROGRAM_LANGUAGES, IMAGE_PUSH_ID
 
 
 def extract_code(text: str, language: str) -> str:
@@ -68,7 +68,7 @@ def upload_image(file: Union[bytes, str]) -> str:
     response = requests.post(
         url="https://content-push.googleapis.com/upload/",
         headers={
-            "Push-ID": "feeds/mcudyrk2a4khkz",
+            "Push-ID": IMAGE_PUSH_ID,
             "Content-Type": "application/octet-stream",
         },
         data=file_data,
@@ -79,6 +79,30 @@ def upload_image(file: Union[bytes, str]) -> str:
     return response.text
 
 
+def build_replit_structure(instructions: str, code: str, filename: str) -> list:
+    """
+    Creates and returns the input image data structure based on provided parameters.
+
+    Args:
+        instructions (str): The instruction text.
+        code (str): The code.
+        filename (str): The filename.
+
+    Returns:
+        list: The input image data structure.
+    """
+    return [
+        [
+            [
+                "qACoKe",
+                json.dumps([instructions, 5, code, [[filename, code]]]),
+                None,
+                "generic",
+            ]
+        ]
+    ]
+
+
 def max_token(text: str, n: int) -> str:
     """
     Return the first 'n' tokens (words) of the given text.
@@ -122,25 +146,3 @@ def max_sentence(text: str, n: int):
             if sentence_count == n:
                 result = "".join(sentences).strip()
                 return result
-
-
-def build_replit_data(instructions: str, code: str, filename: str) -> list:
-    """
-    Creates and returns the input_image_data_struct based on provided parameters.
-
-    :param instructions: The instruction text.
-    :param code: The code.
-    :param filename: The filename.
-
-    :return: The input_image_data_struct.
-    """
-    return [
-        [
-            [
-                "qACoKe",
-                json.dumps([instructions, 5, code, [[filename, code]]]),
-                None,
-                "generic",
-            ]
-        ]
-    ]

gemini/src/model/decorator.py

@@ -1,10 +1,23 @@
 import functools
 import time
 import requests
+from typing import Callable
 
 
-def retry(attempts=3, delay=2, backoff=2):
-    def retry_decorator(func):
+def retry(attempts: int = 3, delay: int = 2, backoff: int = 2) -> Callable:
+    """
+    Retries a function call with exponential backoff.
+
+    Args:
+        attempts (int): The maximum number of attempts. Defaults to 3.
+        delay (int): The initial delay in seconds between retries. Defaults to 2.
+        backoff (int): The backoff factor. Defaults to 2.
+
+    Returns:
+        Callable: Decorator function.
+    """
+
+    def retry_decorator(func: Callable) -> Callable:
         @functools.wraps(func)
         def wrapper(*args, **kwargs):
             _attempts, _delay = attempts, delay
@@ -23,7 +36,17 @@ def wrapper(*args, **kwargs):
     return retry_decorator
 
 
-def log_method(func):
+def log_method(func: Callable) -> Callable:
+    """
+    Logs method entry and exit.
+
+    Args:
+        func (Callable): The function to decorate.
+
+    Returns:
+        Callable: Decorated function.
+    """
+
     @functools.wraps(func)
     def wrapper(*args, **kwargs):
         className = args[0].__class__.__name__
@@ -39,7 +62,17 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
-def time_execution(func):
+def time_execution(func: Callable) -> Callable:
+    """
+    Measures the execution time of a function.
+
+    Args:
+        func (Callable): The function to decorate.
+
+    Returns:
+        Callable: Decorated function.
+    """
+
     @functools.wraps(func)
     def wrapper(*args, **kwargs):
         start_time = time.time()
@@ -51,7 +84,17 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
-def handle_errors(func):
+def handle_errors(func: Callable) -> Callable:
+    """
+    Handles errors that occur during function execution.
+
+    Args:
+        func (Callable): The function to decorate.
+
+    Returns:
+        Callable: Decorated function.
+    """
+
     @functools.wraps(func)
     def wrapper(*args, **kwargs):
         try:

gemini/src/model/exceptions.py

@@ -1,16 +1,31 @@
 class PackageError(Exception):
-    """Invalid credentials/cookies."""
+    """
+    Exception raised when encountering invalid credentials or cookies.
+
+    This exception indicates that the provided credentials or cookies are invalid or insufficient for the operation.
+
+    """
 
     pass
 
 
 class GeminiAPIError(Exception):
-    """Unhandled server error."""
+    """
+    Exception raised for unhandled errors from the Gemini server.
+
+    This exception indicates that an unexpected error occurred on the Gemini server side, which was not properly handled by the client.
+
+    """
 
     pass
 
 
 class TimeoutError(GeminiAPIError):
-    """Request timeout."""
+    """
+    Exception raised when a request times out.
+
+    This exception is a subclass of GeminiAPIError and is raised when a request to the Gemini server exceeds the specified timeout period without receiving a response.
+
+    """
 
     pass

gemini/src/model/image.py

@@ -10,12 +10,41 @@
 
 
 class GeminiImage(BaseModel):
+    """
+    Represents an image with URL, title, and alt text.
+
+    Attributes:
+        url (HttpUrl): The URL of the image.
+        title (str): The title of the image. Defaults to "[Image]".
+        alt (str): The alt text of the image. Defaults to "".
+
+    Methods:
+        validate_images(cls, images): Validates the input images list.
+        save(cls, images: List["GeminiImage"], save_path: str = "cached", cookies: Optional[dict] = None) -> Optional[Path]:
+            Downloads and saves images asynchronously.
+        fetch_bytes(url: HttpUrl, cookies: Optional[dict] = None) -> Optional[bytes]:
+            Fetches bytes of an image asynchronously.
+        fetch_images_dict(cls, images: List["GeminiImage"], cookies: Optional[dict] = None) -> Dict[str, bytes]:
+            Fetches images asynchronously and returns a dictionary of image data.
+        save_images(cls, image_data: Dict[str, bytes], save_path: str = "cached"):
+            Saves images locally.
+    """
+
     url: HttpUrl
     title: str = "[Image]"
     alt: str = ""
 
     @classmethod
     def validate_images(cls, images):
+        """
+        Validates the input images list.
+
+        Args:
+            images: The list of GeminiImage objects.
+
+        Raises:
+            ValueError: If the input images list is empty.
+        """
         if not images:
             raise ValueError(
                 "Input is empty. Please provide images infomation to proceed."
@@ -29,6 +58,17 @@ async def save(
         save_path: str = "cached",
         cookies: Optional[dict] = None,
     ) -> Optional[Path]:
+        """
+        Downloads and saves images asynchronously.
+
+        Args:
+            images (List["GeminiImage"]): The list of GeminiImage objects to download.
+            save_path (str): The directory path to save the images. Defaults to "cached".
+            cookies (Optional[dict]): Cookies to be used for downloading images. Defaults to None.
+
+        Returns:
+            Optional[Path]: The path to the directory where the images are saved, or None if saving fails.
+        """
         cls.validate_images(images)
         image_data = await cls.fetch_images_dict(images, cookies)
         await cls.save_images(image_data, save_path)
@@ -37,6 +77,16 @@ async def save(
     async def fetch_bytes(
         url: HttpUrl, cookies: Optional[dict] = None
     ) -> Optional[bytes]:
+        """
+        Fetches bytes of an image asynchronously.
+
+        Args:
+            url (HttpUrl): The URL of the image.
+            cookies (Optional[dict]): Cookies to be used for fetching the image. Defaults to None.
+
+        Returns:
+            Optional[bytes]: The bytes of the image, or None if fetching fails.
+        """
         try:
             async with httpx.AsyncClient(follow_redirects=True) as client:
                 response = await client.get(str(url), cookies=cookies)
@@ -50,13 +100,30 @@ async def fetch_bytes(
     async def fetch_images_dict(
         cls, images: List["GeminiImage"], cookies: Optional[dict] = None
     ) -> Dict[str, bytes]:
+        """
+        Fetches images asynchronously and returns a dictionary of image data.
+
+        Args:
+            images (List["GeminiImage"]): The list of GeminiImage objects to fetch.
+            cookies (Optional[dict]): Cookies to be used for fetching the images. Defaults to None.
+
+        Returns:
+            Dict[str, bytes]: A dictionary containing image titles as keys and image bytes as values.
+        """
         cls.validate_images(images)
         tasks = [cls.fetch_bytes(image.url, cookies=cookies) for image in images]
         results = await asyncio.gather(*tasks)
         return {image.title: result for image, result in zip(images, results) if result}
 
     @staticmethod
     async def save_images(image_data: Dict[str, bytes], save_path: str = "cached"):
+        """
+        Saves images locally.
+
+        Args:
+            image_data (Dict[str, bytes]): A dictionary containing image titles as keys and image bytes as values.
+            save_path (str): The directory path to save the images. Defaults to "cached".
+        """
         os.makedirs(save_path, exist_ok=True)
         for title, data in image_data.items():
             now = datetime.datetime.now().strftime("%Y%m%d%H%M%S%f")