docs(client): complete the Args blocks in ClientSession

`read_resource`, `send_request`, `call_tool` and `get_prompt` each document only
the input-required kwargs. The block was written once and copied, so every one
of them hides the parameters a caller has to pass:

- `send_request` documented `metadata` and omitted `request`, `result_type`,
  `request_read_timeout_seconds`, `progress_callback`.
- `read_resource` omitted `uri` — the only parameter without a default — and
  `meta`.
- `call_tool` omitted `name`, `arguments`, `read_timeout_seconds`,
  `progress_callback`, `meta`.
- `get_prompt` omitted `name`, `arguments`, `meta`.

Docstrings only: an AST comparison against the previous head is identical once
docstrings are excluded, and every parameter of the four methods now appears in
its Args block. `pytest tests/client/test_session.py` -> 94 passed;
`ruff check` and `ruff format --check` pass.

Author: lxcxjxhx

src/mcp/client/session.py

@@ -548,7 +548,11 @@ async def send_request(
         """Send a request and wait for its typed result.
 
         Args:
+            request: The request to send.
+            result_type: The expected result type, or a `TypeAdapter` for it.
+            request_read_timeout_seconds: Per-request read timeout in seconds.
             metadata: Streamable HTTP resumption hints.
+            progress_callback: Called with progress notifications for this request.
 
         Raises:
             MCPError: Error response, read timeout, or connection closed.
@@ -942,8 +946,10 @@ async def read_resource(
         """Send a resources/read request.
 
         Args:
+            uri: The resource URI to read.
             input_responses: Responses to a prior `InputRequiredResult.input_requests`.
             request_state: Opaque state echoed from a prior `InputRequiredResult`.
+            meta: Request metadata, forwarded as `_meta`.
             allow_input_required: When `False` (default), an `InputRequiredResult`
                 from the server raises `RuntimeError`; when `True`, it is returned
                 so the caller can resolve the requests and retry.
@@ -1070,8 +1076,13 @@ async def call_tool(
         the tool before calling it to enable header emission.
 
         Args:
+            name: The tool name.
+            arguments: The tool arguments, or `None` for a tool that takes none.
+            read_timeout_seconds: Per-request read timeout in seconds.
+            progress_callback: Called with progress notifications for this call.
             input_responses: Responses to a prior `InputRequiredResult.input_requests`.
             request_state: Opaque state echoed from a prior `InputRequiredResult`.
+            meta: Request metadata, forwarded as `_meta`.
             allow_input_required: When ``False`` (default), an `InputRequiredResult`
                 from the server raises `RuntimeError`; when ``True``, it is returned
                 so the caller can resolve the requests and retry.
@@ -1227,8 +1238,11 @@ async def get_prompt(
         """Send a prompts/get request.
 
         Args:
+            name: The prompt name.
+            arguments: The prompt arguments, or `None` for a prompt that takes none.
             input_responses: Responses to a prior `InputRequiredResult.input_requests`.
             request_state: Opaque state echoed from a prior `InputRequiredResult`.
+            meta: Request metadata, forwarded as `_meta`.
             allow_input_required: When `False` (default), an `InputRequiredResult`
                 from the server raises `RuntimeError`; when `True`, it is returned
                 so the caller can resolve the requests and retry.