updated BenchmarkConfig to have from_toml

python/prompt_bench/downloader.py

@@ -3,7 +3,6 @@
 from __future__ import annotations
 
 import logging
-import tomllib
 from pathlib import Path
 from typing import Annotated
 
@@ -63,10 +62,7 @@ def main(
         message = f"Config file does not exist: {config}"
         raise typer.BadParameter(message)
 
-    with config.open("rb") as file:
-        raw = tomllib.load(file)
-
-    benchmark_config = BenchmarkConfig(**raw)
+    benchmark_config = BenchmarkConfig.from_toml(config)
     download_all(benchmark_config)
 
 

python/prompt_bench/main.py

@@ -5,7 +5,6 @@ from __future__ import annotations
 import json
 import logging
 import time
-import tomllib
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from pathlib import Path
 from typing import Annotated
@@ -201,10 +200,7 @@ def main(
         message = f"Config file does not exist: {config}"
         raise typer.BadParameter(message)
 
-    with config.open("rb") as file:
-        raw = tomllib.load(file)
-
-    benchmark_config = BenchmarkConfig(**raw)
+    benchmark_config = BenchmarkConfig.from_toml(config)
     output_dir.mkdir(parents=True, exist_ok=True)
 
     run_benchmark(benchmark_config, input_dir, output_dir)

python/prompt_bench/models.py

@@ -2,8 +2,14 @@
 
 from __future__ import annotations
 
+import tomllib
+from typing import TYPE_CHECKING
+
 from pydantic import BaseModel
 
+if TYPE_CHECKING:
+    from pathlib import Path
+
 
 class BenchmarkConfig(BaseModel):
     """Top-level benchmark configuration loaded from TOML."""
@@ -16,3 +22,9 @@ class BenchmarkConfig(BaseModel):
     timeout: int = 300
     concurrency: int = 4
     vllm_startup_timeout: int = 900
+
+    @classmethod
+    def from_toml(cls, config_path: Path) -> BenchmarkConfig:
+        """Load benchmark config from a TOML file."""
+        raw = tomllib.loads(config_path.read_text())["bench"]
+        return cls(**raw)