src/anthropic/_legacy_response.py [234:278]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            if to:
                if not is_stream_class_type(to):
                    raise TypeError(f"Expected custom parse type to be a subclass of {Stream} or {AsyncStream}")

                return cast(
                    _T,
                    to(
                        cast_to=extract_stream_chunk_type(
                            to,
                            failure_message="Expected custom stream type to be passed with a type argument, e.g. Stream[ChunkType]",
                        ),
                        response=self.http_response,
                        client=cast(Any, self._client),
                    ),
                )

            if self._stream_cls:
                return cast(
                    R,
                    self._stream_cls(
                        cast_to=extract_stream_chunk_type(self._stream_cls),
                        response=self.http_response,
                        client=cast(Any, self._client),
                    ),
                )

            stream_cls = cast("type[Stream[Any]] | type[AsyncStream[Any]] | None", self._client._default_stream_cls)
            if stream_cls is None:
                raise MissingStreamClassError()

            return cast(
                R,
                stream_cls(
                    cast_to=cast_to,
                    response=self.http_response,
                    client=cast(Any, self._client),
                ),
            )

        if cast_to is NoneType:
            return cast(R, None)

        response = self.http_response
        if cast_to == str:
            return cast(R, response.text)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



src/anthropic/_response.py [164:208]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            if to:
                if not is_stream_class_type(to):
                    raise TypeError(f"Expected custom parse type to be a subclass of {Stream} or {AsyncStream}")

                return cast(
                    _T,
                    to(
                        cast_to=extract_stream_chunk_type(
                            to,
                            failure_message="Expected custom stream type to be passed with a type argument, e.g. Stream[ChunkType]",
                        ),
                        response=self.http_response,
                        client=cast(Any, self._client),
                    ),
                )

            if self._stream_cls:
                return cast(
                    R,
                    self._stream_cls(
                        cast_to=extract_stream_chunk_type(self._stream_cls),
                        response=self.http_response,
                        client=cast(Any, self._client),
                    ),
                )

            stream_cls = cast("type[Stream[Any]] | type[AsyncStream[Any]] | None", self._client._default_stream_cls)
            if stream_cls is None:
                raise MissingStreamClassError()

            return cast(
                R,
                stream_cls(
                    cast_to=cast_to,
                    response=self.http_response,
                    client=cast(Any, self._client),
                ),
            )

        if cast_to is NoneType:
            return cast(R, None)

        response = self.http_response
        if cast_to == str:
            return cast(R, response.text)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -