Add pragma: no cover to Protocol stubs and unused clone() methods

Author: Kludex

src/mcp/client/_transport.py

@@ -15,7 +15,7 @@
 
 
 @runtime_checkable
-class ReadStream(Protocol[T_co]):
+class ReadStream(Protocol[T_co]):  # pragma: no cover
     """Protocol for reading items from a stream.
 
     Both ``MemoryObjectReceiveStream`` and ``ContextReceiveStream`` satisfy
@@ -37,7 +37,7 @@ async def __aexit__(
 
 
 @runtime_checkable
-class WriteStream(Protocol[T_contra]):
+class WriteStream(Protocol[T_contra]):  # pragma: no cover
     """Protocol for writing items to a stream.
 
     Both ``MemoryObjectSendStream`` and ``ContextSendStream`` satisfy

src/mcp/shared/_context_streams.py

@@ -43,7 +43,7 @@ def close(self) -> None:
     async def aclose(self) -> None:
         await self._inner.aclose()
 
-    def clone(self) -> ContextSendStream[T]:
+    def clone(self) -> ContextSendStream[T]:  # pragma: no cover
         return ContextSendStream(self._inner.clone())
 
     async def __aenter__(self) -> ContextSendStream[T]:
@@ -79,7 +79,7 @@ def close(self) -> None:
     async def aclose(self) -> None:
         await self._inner.aclose()
 
-    def clone(self) -> ContextReceiveStream[T]:
+    def clone(self) -> ContextReceiveStream[T]:  # pragma: no cover
         return ContextReceiveStream(self._inner.clone())
 
     def __aiter__(self) -> ContextReceiveStream[T]: