fix: resolve ContentFormatError syntax error and align expected_type/response_format parameter

- Remove dangling code block from _exceptions.py ContentFormatError class that caused IndentationError
- Fix _completions.py to pass response_format= instead of expected_type= to ContentFormatError

Author: giulio-leone

src/openai/_exceptions.py

@@ -169,18 +169,6 @@ class ContentFormatError(OpenAIError):
 
     raw_content: str
     """The raw content string returned by the API that failed to parse."""
-        # Avoid including the full raw_content in the exception message to prevent
-        # leaking large or sensitive responses into logs/tracebacks. A truncated
-        # preview is included instead; the full content is available via the
-        # `raw_content` attribute for debugging purposes.
-        preview = raw_content
-        max_preview_length = 200
-        if len(preview) > max_preview_length:
-            preview = preview[:max_preview_length] + "... [truncated]"
-
-        super().__init__(
-            f"Could not parse response content as the response did not match the expected format: {error}. "
-            f"Raw content preview: {preview!r}"
 
     def __init__(self, *, raw_content: str, error: Exception, response_format: object | None = None) -> None:
         expected_response_format = _response_format_name(response_format)

src/openai/lib/_parsing/_completions.py

@@ -251,8 +251,7 @@ def _parse_content(response_format: type[ResponseFormatT], content: str) -> Resp
 
             return pydantic.TypeAdapter(response_format).validate_json(content)
     except (pydantic.ValidationError, json.JSONDecodeError) as exc:
-        expected_type = getattr(response_format, "__qualname__", getattr(response_format, "__name__", repr(response_format)))
-        raise ContentFormatError(raw_content=content, error=exc, expected_type=expected_type) from exc
+        raise ContentFormatError(raw_content=content, error=exc, response_format=response_format) from exc
 
     raise TypeError(f"Unable to automatically parse response format type {response_format}")