diff --git a/src/ua_generator/__init__.py b/src/ua_generator/__init__.py
index 877c639..dd5cc7f 100644
--- a/src/ua_generator/__init__.py
+++ b/src/ua_generator/__init__.py
@@ -5,13 +5,11 @@
 """
 import typing
 
-from . import user_agent, options as _options, data as _data
+from . import user_agent, options as _options
 
 
-def generate(
-    device: typing.Union[tuple[_data._DEVICES_TYPE], _data._DEVICES_TYPE, None] = None,
-    platform: typing.Union[tuple[_data._PLATFORMS_TYPE], _data._PLATFORMS_TYPE, None] = None,
-    browser: typing.Union[tuple[_data._BROWSERS_TYPE], _data._BROWSERS_TYPE, None] = None,
-    options: typing.Union[_options.Options, None] = None
-):
+def generate(device: typing.Union[tuple, str, None] = None,
+             platform: typing.Union[tuple, str, None] = None,
+             browser: typing.Union[tuple, str, None] = None,
+             options: typing.Union[_options.Options, None] = None) -> user_agent.UserAgent:
     return user_agent.UserAgent(device, platform, browser, options)
diff --git a/src/ua_generator/data/__init__.py b/src/ua_generator/data/__init__.py
index da655bb..afca546 100644
--- a/src/ua_generator/data/__init__.py
+++ b/src/ua_generator/data/__init__.py
@@ -3,17 +3,12 @@
 Copyright: 2022-2024 Ekin Karadeniz (github.com/iamdual)
 License: Apache License 2.0 
 """
-from typing import Literal
 
 DEVICES = ('desktop', 'mobile')
-_DEVICES_TYPE = Literal['desktop', 'mobile', None]
 
 PLATFORMS = ('windows', 'macos', 'ios', 'linux', 'android')
-_PLATFORMS_TYPE = Literal['windows', 'macos', 'ios', 'linux', 'android', None]
 PLATFORMS_DESKTOP = ('windows', 'macos', 'linux')  # Platforms on desktop devices
 PLATFORMS_MOBILE = ('ios', 'android')  # Platforms on mobile devices
 
 BROWSERS = ('chrome', 'edge', 'firefox', 'safari')
-_BROWSERS_TYPE = Literal['chrome', 'edge', 'firefox', 'safari', None]
 BROWSERS_SUPPORT_CH = ('chrome', 'edge')  # Browsers that support Client Hints
-_BROWSERS_SUPPORT_CH_TYPE = Literal['chrome', 'edge', None]
diff --git a/src/ua_generator/user_agent.py b/src/ua_generator/user_agent.py
index ec3049d..3a68cd8 100644
--- a/src/ua_generator/user_agent.py
+++ b/src/ua_generator/user_agent.py
@@ -7,26 +7,14 @@
 
 from . import utils, exceptions
 from .client_hints import ClientHints
-from .data import (
-    DEVICES, _DEVICES_TYPE,
-    BROWSERS, _BROWSERS_TYPE,
-    PLATFORMS, _PLATFORMS_TYPE,
-    PLATFORMS_DESKTOP,
-    PLATFORMS_MOBILE,
-)
+from .data import DEVICES, BROWSERS, PLATFORMS, PLATFORMS_DESKTOP, PLATFORMS_MOBILE
 from .data.generator import Generator
 from .headers import Headers
 from .options import Options
 
 
 class UserAgent:
-    def __init__(
-        self,
-        device: _DEVICES_TYPE = None,
-        platform: _PLATFORMS_TYPE = None,
-        browser: _BROWSERS_TYPE = None,
-        options: typing.Union[Options, None] = None,
-    ):
+    def __init__(self, device=None, platform=None, browser=None, options=None):
         self.device: typing.Union[str, None] = utils.choice(device) if device else None
         self.platform: typing.Union[str, None] = utils.choice(platform) if platform else None
         self.browser: typing.Union[str, None] = utils.choice(browser) if browser else None
@@ -100,6 +88,3 @@ def __complete(self):
 
     def __str__(self):
         return self.text
-
-    def __repr__(self) -> str:
-        return f"UserAgent(\"{self.text}\", device={self.device}, platform={self.platform}, browser={self.browser})"
\ No newline at end of file