Feat/support rerank (#6058)

python/sglang/utils.py

@@ -512,3 +512,12 @@ async def async_stream_and_merge(llm, prompt, sampling_params):
         cleaned_chunk = trim_overlap(final_text, chunk_text)
         final_text += cleaned_chunk
         yield cleaned_chunk  # yield the non-overlapping portion
+
+
+def resolve_obj_by_qualname(qualname: str) -> Any:
+    """
+    Resolve an object by its fully qualified name.
+    """
+    module_name, obj_name = qualname.rsplit(".", 1)
+    module = importlib.import_module(module_name)
+    return getattr(module, obj_name)