feat: add payment method support for premium and stars purchases, including validation and tests

pyfragment/__init__.py

@@ -15,6 +15,7 @@ from pyfragment.types import (
     CookieError,
     CookieResult,
     FragmentAPIError,
+    # exceptions
     FragmentError,
     FragmentPageError,
     GiftsResult,
@@ -22,9 +23,12 @@ from pyfragment.types import (
     NumbersResult,
     OperationError,
     ParseError,
+    # literal types
+    PaymentMethod,
     PremiumGiveawayResult,
     PremiumResult,
     StarsGiveawayResult,
+    # results
     StarsResult,
     TerminateSessionsResult,
     TransactionError,
@@ -41,31 +45,35 @@ __version__: str = version("pyfragment")
 __all__ = [
     "__version__",
     "FragmentClient",
-    "AdsRechargeResult",
+    # results
+    "StarsResult",
+    "StarsGiveawayResult",
+    "PremiumResult",
+    "PremiumGiveawayResult",
+    "WalletInfo",
     "AdsTopupResult",
+    "AdsRechargeResult",
+    "CookieResult",
     "GiftsResult",
     "LoginCodeResult",
     "NumbersResult",
-    "PremiumGiveawayResult",
-    "PremiumResult",
-    "StarsGiveawayResult",
-    "StarsResult",
     "TerminateSessionsResult",
     "UsernamesResult",
-    "WalletInfo",
-    "ClientError",
-    "ConfigurationError",
-    "CookieError",
-    "CookieResult",
-    "FragmentAPIError",
+    # exceptions
     "FragmentError",
+    "FragmentAPIError",
     "FragmentPageError",
+    "ConfigurationError",
+    "UserNotFoundError",
+    "WalletError",
+    "VerificationError",
+    "TransactionError",
     "AnonymousNumberError",
+    "ClientError",
+    "CookieError",
     "OperationError",
     "ParseError",
-    "TransactionError",
     "UnexpectedError",
-    "UserNotFoundError",
-    "VerificationError",
-    "WalletError",
+    # literal types
+    "PaymentMethod",
 ]