KeyError: 'cost_usd' with Max subsription #2

$  uv pip list
Package           Version
----------------- -------
anyio             4.9.0
claude-code-sdk   0.0.10
idna              3.10
sniffio           1.3.1
typing-extensions 4.14.0
$ cat basic_sample.py
import anyio
from claude_code_sdk import query

async def main():
    async for message in query(prompt="What is 2 + 2?"):
        print(message)

anyio.run(main)

$ python basic_sample.py 
SystemMessage(subtype='init', data={'type': 'system', 'subtype': 'init', 'cwd': '/workspace/sdk', 'session_id': 'b2b8a840-a344-4761-8415-106d197d79db', 'tools': ['Task', 'Bash', 'Glob', 'Grep', 'LS', 'exit_plan_mode', 'Read', 'Edit', 'MultiEdit', 'Write', 'NotebookRead', 'NotebookEdit', 'WebFetch', 'TodoRead', 'TodoWrite', 'WebSearch'], 'mcp_servers': [], 'model': 'claude-sonnet-4-20250514', 'permissionMode': 'default', 'apiKeySource': 'none'})
AssistantMessage(content=[TextBlock(text='4')])
unhandled exception during asyncio.run() shutdown
task: <Task finished name='Task-4' coro=<<async_generator_athrow without __name__>()> exception=RuntimeError('Attempted to exit cancel scope in a different task than it was entered in')>
Traceback (most recent call last):
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/_internal/transport/subprocess_cli.py", line 193, in receive_messages
    yield data
GeneratorExit

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/_internal/transport/subprocess_cli.py", line 182, in receive_messages
    async with anyio.create_task_group() as tg:
               ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 778, in __aexit__
    if self.cancel_scope.__exit__(type(exc), exc, exc.__traceback__):
       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 457, in __exit__
    raise RuntimeError(
RuntimeError: Attempted to exit cancel scope in a different task than it was entered in
Traceback (most recent call last):
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/_internal/client.py", line 38, in process_query
    message = self._parse_message(data)
              ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/_internal/client.py", line 89, in _parse_message
    cost_usd=data["cost_usd"],
             ~~~~^^^^^^^^^^^^
KeyError: 'cost_usd'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/workspace/sdk/basic_sample.py", line 8, in <module>
    anyio.run(main)
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/anyio/_core/_eventloop.py", line 74, in run
    return async_backend.run(func, args, {}, backend_options)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 2310, in run
    return runner.run(wrapper())
           ^^^^^^^^^^^^^^^^^^^^^
  File "/home/node/.local/share/uv/python/cpython-3.12.11-linux-aarch64-gnu/lib/python3.12/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/node/.local/share/uv/python/cpython-3.12.11-linux-aarch64-gnu/lib/python3.12/asyncio/base_events.py", line 691, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 2298, in wrapper
    return await func(*args)
           ^^^^^^^^^^^^^^^^^
  File "/workspace/sdk/basic_sample.py", line 5, in main
    async for message in query(prompt="What is 2 + 2?"):
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/__init__.py", line 101, in query
    async for message in client.process_query(prompt=prompt, options=options):
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/_internal/client.py", line 43, in process_query
    await transport.disconnect()
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/claude_code_sdk/_internal/transport/subprocess_cli.py", line 152, in disconnect
    await self._process.wait()
  File "/workspace/sdk/.venv/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 1082, in wait
    return await self._process.wait()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/node/.local/share/uv/python/cpython-3.12.11-linux-aarch64-gnu/lib/python3.12/asyncio/subprocess.py", line 137, in wait
    return await self._transport._wait()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/node/.local/share/uv/python/cpython-3.12.11-linux-aarch64-gnu/lib/python3.12/asyncio/base_subprocess.py", line 230, in _wait
    return await waiter
           ^^^^^^^^^^^^
asyncio.exceptions.CancelledError: Cancelled by cancel scope ffff923b21b0
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