diff --git a/litellm/llms/nvidia_nim/rerank/transformation.py b/litellm/llms/nvidia_nim/rerank/transformation.py
index 15cfdb6bece..beafa02fe62 100644
--- a/litellm/llms/nvidia_nim/rerank/transformation.py
+++ b/litellm/llms/nvidia_nim/rerank/transformation.py
@@ -24,7 +24,7 @@ class NvidiaNimQueryObject(TypedDict):
 
 class NvidiaNimPassageObject(TypedDict, total=False):
     text: str
-    image: str
+    image: str  # writable-ok: assembled field-by-field in transform_rerank_request
 
 
 class NvidiaNimRerankRequest(TypedDict, total=False):
diff --git a/litellm/types/litellm_core_utils/streaming_chunk_builder_utils.py b/litellm/types/litellm_core_utils/streaming_chunk_builder_utils.py
index 3deb307881f..59850cbfed8 100644
--- a/litellm/types/litellm_core_utils/streaming_chunk_builder_utils.py
+++ b/litellm/types/litellm_core_utils/streaming_chunk_builder_utils.py
@@ -14,5 +14,5 @@ class UsagePerChunk(TypedDict):
     completion_tokens_details: CompletionTokensDetails | None
     prompt_tokens_details: PromptTokensDetailsWrapper | None
     cost: float | None
-    inference_geo: str | None
-    speed: str | None
+    inference_geo: ReadOnly[str | None]
+    speed: ReadOnly[str | None]