openhands.core.message_utils

get_token_usage_for_event

def get_token_usage_for_event(event: Event,
                              metrics: Metrics) -> TokenUsage | None

Returns at most one token usage record for the model_response.id in this event's tool_call_metadata.

If no response_id is found, or none match in metrics.token_usages, returns None.

get_token_usage_for_event_id

def get_token_usage_for_event_id(events: list[Event], event_id: int,
                                 metrics: Metrics) -> TokenUsage | None

Starting from the event with .id == event_id and moving backwards in events, find the first TokenUsage record (if any) associated with a response_id from tool_call_metadata.model_response.id.

Returns the first match found, or None if none is found.