[py] correct type annotations of default-None params

[DeflateAwning]

User description

Corrected type hints/annotations, mostly of arguments with default values of None.

Also added a few entirely-missing type hints, mostly for strings.

Motivation and Context

Pyright type checker was throwing errors in many of these cases.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

None of the other checklist items are required.

Recommend a squash merge.

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PR Type

Bug fix, Enhancement

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Description

• Corrected type annotations for parameters with default None values.

• Added missing type hints, primarily for strings and lists.

• Improved type safety by using Optional and explicit type declarations.

• Enhanced code clarity and compatibility with type checkers like Pyright.

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Changes walkthrough 📝

	Relevant files
Bug fix	18 files service.py Updated type hints for `log_output` parameter.                      +1/-1      webdriver.py Added `Optional` type hints for `options` and `service`.  +4/-2      service.py Corrected type hints for executable_path, log_output, and driver_path_env_key. +3/-3      webdriver.py Added `Optional` type hints for multiple parameters.          +5/-3      wheel_actions.py Updated type hint for `source` parameter.                                +4/-1      service.py Corrected type hints for multiple parameters including `log_output`. +3/-3      service.py Updated type hints for executable_path, log_output, and driver_path_env_key. +3/-3      webdriver.py Added `Optional` type hints for `options` and `service`.  +4/-2      service.py Corrected type hints for executable_path, log_output, and driver_path_env_key. +3/-3      webdriver.py Added `Optional` type hints for `options` and `service`.  +3/-2      service.py Updated type hints for executable_path, log_output, and driver_path_env_key. +3/-3      webdriver.py Added `Optional` type hints for `options` and `service`.  +4/-2      remote_connection.py Added `Optional` type hint for `_client_config`.                  +1/-1      service.py Corrected type hints for `executable_path` and `driver_path_env_key`. +2/-2      webdriver.py Added `Optional` type hints for `options` and `service`.  +4/-2      event_firing_webdriver.py Updated type hint for `execute_script` method.                      +1/-1      webdriver.py Added `Optional` type hint for `service` parameter.            +2/-1      webdriver.py Added `Optional` type hint for `service` parameter.            +2/-1
Enhancement	2 files options.py Added type hints for `arguments` and `add_argument` methods. +3/-2      webdriver.py Enhanced type hints for `execute` and `execute_script` methods. +3/-2

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⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Type Safety The execute() method's params parameter type was changed from 'dict' to 'dict[str, Any]'. Verify this doesn't break existing code that passes dictionaries with non-string keys. def execute(self, driver_command: str, params: dict[str, Any]) -> dict[str, Any]: """Sends a command to be executed by a command.CommandExecutor.

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PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Learned best practice	✅ Use explicit None checks instead of implicit truthiness checks when validating nullable parameters Suggestion Impact: Changed the source parameter check from 'if not source' to 'if source is None' for more explicit null checking code diff: - if not source: + if source is None: Add a null validation check for the source parameter at the start of the init method to make the code more defensive and prevent potential NullReferenceExceptions. The current code implicitly handles None but an explicit check would be clearer. py/selenium/webdriver/common/actions/wheel_actions.py [25-28] def __init__(self, source: Optional[WheelInput] = None): - if not source: + if source is None: source = WheelInput("wheel") super().__init__(source) [Suggestion has been applied] Suggestion importance[1-10]: 6	Low
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