feat: implement client.call() method for raw Fragment API requests; add example and unit tests

examples/call.py

@@ -0,0 +1,36 @@
+"""
+Example: send a raw request to any Fragment API method.
+
+Use client.call() when you need to access a method that is not yet
+wrapped by the library, or to inspect raw API responses directly.
+
+page_url must match the Fragment page the method belongs to — Fragment
+requires a hash derived from each specific page.
+"""
+
+import asyncio
+
+from pyfragment import FragmentClient
+
+SEED = "word1 word2 ... word24"
+API_KEY = "YOUR_TONAPI_KEY"
+COOKIES = {
+    "stel_ssid": "YOUR_STEL_SSID",
+    "stel_dt": "YOUR_STEL_DT",
+    "stel_token": "YOUR_STEL_TOKEN",
+    "stel_ton_token": "YOUR_STEL_TON_TOKEN",
+}
+
+METHOD = "anyFragmentMethod"  # replace with the actual method name
+DATA = {"key": "value"}  # replace with the actual request payload
+PAGE_URL = "https://fragment.com/stars/buy"  # replace with the matching Fragment page
+
+
+async def main() -> None:
+    async with FragmentClient(seed=SEED, api_key=API_KEY, cookies=COOKIES) as client:
+        result = await client.call(METHOD, DATA, page_url=PAGE_URL)
+        print(result)
+
+
+if __name__ == "__main__":
+    asyncio.run(main())