Use _ to show that a return value is deliberately ignored

- This is a convention.
- Ensures that all ignored return values are explicit, helping to avoid
  bugs.

Author: datalogics-kam

src/pdfrest/client.py

@@ -598,7 +598,7 @@ def _validate_pdfrest_api_key(api_key: str, url: URL) -> None:
             msg = "pdfRest API keys must be 36 characters (UUID format)."
             raise PdfRestConfigurationError(msg)
         try:
-            uuid.UUID(api_key)
+            _ = uuid.UUID(api_key)
         except ValueError:
             msg = "pdfRest API keys must be valid UUID strings."
             raise PdfRestConfigurationError(msg) from None
@@ -786,7 +786,7 @@ def _rewind_stream_snapshots(self, request: _RequestModel) -> bool:
                 )
                 return False
             try:
-                seek_fn(position)
+                _ = seek_fn(position)
             except (OSError, ValueError) as exc:  # pragma: no cover - defensive
                 request.mark_non_rewindable_streams()
                 self._log_non_rewindable_stream(
@@ -1687,7 +1687,7 @@ def write_bytes(
         try:
             with path.open("wb") as file_handle:
                 for chunk in response.iter_bytes():
-                    file_handle.write(chunk)
+                    _ = file_handle.write(chunk)
         finally:
             response.close()
         return path
@@ -1930,7 +1930,7 @@ async def write_bytes(
         try:
             with path.open("wb") as file_handle:
                 async for chunk in response.aiter_bytes():
-                    file_handle.write(chunk)
+                    _ = file_handle.write(chunk)
         finally:
             await response.aclose()
         return path
@@ -1980,7 +1980,7 @@ def __init__(
         self._files_client = _FilesClient(self)
 
     def __enter__(self) -> PdfRestClient:
-        super().__enter__()
+        _ = super().__enter__()
         return self
 
     def __exit__(self, exc_type: Any, exc: Any, traceback: Any) -> None:
@@ -2409,7 +2409,7 @@ def __init__(
         self._files_client = _AsyncFilesClient(self)
 
     async def __aenter__(self) -> AsyncPdfRestClient:
-        await super().__aenter__()
+        _ = await super().__aenter__()
         return self
 
     async def __aexit__(self, exc_type: Any, exc: Any, traceback: Any) -> None:

src/pdfrest/models/_internal.py

@@ -144,7 +144,7 @@ def allowed_mime_types_validator(
     ) -> PdfRestFile | list[PdfRestFile]:
         if isinstance(value, list):
             for item in value:
-                allowed_mime_types_validator(item)
+                _ = allowed_mime_types_validator(item)
             return value
         if value.type not in combined_allowed_mime_types:
             msg = error_msg or f"The file type must be one of: {allowed_mime_types}"