Delete grpcio/GRPCIO_USER_GUIDE.txt

grpcio/GRPCIO_USER_GUIDE.txt

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-================================================================================
-  GRPCIO - USER GUIDE (Android Python STB) - Generated by RIMI
-================================================================================
-
-Package: grpcio 1.83.1 (latest stable on PyPI at build time)
-Wheel tags: cp312-cp312-android_24_x86_64 / cp312-cp312-android_24_arm64_v8a
-Runtime dep: typing_extensions~=4.12 (pure Python, own package - install it too)
-Requires-Python: >=3.10 (app runs Python 3.12)
-
-WHAT IT IS
------------
-gRPC is an HTTP/2-based RPC framework. The `grpc` package lets you build
-clients and servers with unary and streaming calls, sync (`grpc`) and
-async (`grpc.aio`) APIs, channels, interceptors, compression, and
-TLS credentials. This wheel bundles the full upstream C++ core
-(gRPC core, abseil, BoringSSL, c-ares, re2, upb, zlib) statically inside
-one self-contained native extension, built from the official PyPI sdist
-with the Android NDK (API 24). No extra native libraries are needed.
-
-INSTALL
--------
-1. Install this wheel (STANDALONE) with the app PipManager.
-2. Install the matching pure-Python `typing_extensions` wheel (shipped
-   alongside in STANDALONE) if it is not already installed.
-3. `import grpc` - no setup, no preload, no environment variables.
-
-QUICK START (loopback echo, no protobuf, no external network)
---------------------------------------------------------------
->>> from concurrent import futures
->>> import grpc
->>> def echo(request, context):
-...     return b'echo:' + request
->>> h = grpc.unary_unary_rpc_method_handler(
-...     echo, request_deserializer=lambda b: b,
-...     response_serializer=lambda b: b)
->>> server = grpc.server(futures.ThreadPoolExecutor(max_workers=2))
->>> server.add_generic_rpc_handlers(
-...     (grpc.method_handlers_generic_handler('test.Test', {'Echo': h}),))
->>> port = server.add_insecure_port('127.0.0.1:0')
->>> server.start()
->>> ch = grpc.insecure_channel('127.0.0.1:%d' % port)
->>> grpc.channel_ready_future(ch).result(timeout=15)
->>> ch.unary_unary('/test.Test/Echo')(b'ping', timeout=15)
-b'echo:ping'
->>> ch.close(); server.stop(None)
-
-For real services, generate stubs with `grpcio-tools` on your PC
-(`python -m grpc_tools.protoc`) and copy the generated *_pb2.py files
-to the device; this wheel then serves them at runtime.
-
-ANDROID NOTES
--------------
-- Loopback TCP (127.0.0.1) is used for local client+server in one process;
-  no internet permission or external network is required for that.
-- TLS roots: `grpc/_cython/_credentials/roots.pem` is bundled (same as
-  upstream wheels) and used by default SSL credentials.
-- Fork support is compiled in (GRPC_ENABLE_FORK_SUPPORT); on Android,
-  prefer threads (as above) over os.fork().
-- c-ares uses the vendored Android DNS config (bionic has no
-  getservbyport_r); async name resolution works via the platform resolver.
-- The extension links the app's libc++_shared and librimi (provided by
-  the app, like all native packages) - nothing for you to install.
-
-TESTED ON DEVICE (Test_Grpcio.py - ALL PASSED)
-----------------------------------------------
-1. import grpc + native cygrpc extension
-2. grpc version 1.83.1
-3. typing_extensions present
-4. insecure_channel creation (no traffic)
-5. loopback server bind on 127.0.0.1
-6. channel ready on loopback
-7. unary echo roundtrip b'ping' -> b'echo:ping'
-8. second unary echo roundtrip (channel reuse)
-9. StatusCode API surface
-
-Run it from the app Scripts folder; exit code 0 means ALL PASSED
-(network-restricted sandbox steps report SKIP instead of FAIL).
-
-================================================================================
-  Generated by RIMI
-================================================================================