field: Optional[Literal['latency_seconds', 'first_token_seconds', 'total_tokens', 'prompt_tokens', 'completion_tokens', 'total_cost', 'prompt_cost', 'completion_cost', 'feedback_score', 'prompt_token_details.cache_creation', 'prompt_token_details.cache_read', 'prompt_token_details.ephemeral_1h_input_tokens', 'prompt_token_details.ephemeral_5m_input_tokens', 'prompt_token_details.audio', 'prompt_token_details.image', 'prompt_token_details.video', 'completion_token_details.reasoning', 'completion_token_details.audio', 'completion_token_details.image', 'completion_token_details.video', 'prompt_cost_details.cache_creation', 'prompt_cost_details.cache_read', 'prompt_cost_details.ephemeral_1h_input_tokens', 'prompt_cost_details.ephemeral_5m_input_tokens', 'prompt_cost_details.audio', 'prompt_cost_details.image', 'prompt_cost_details.video', 'completion_cost_details.reasoning', 'completion_cost_details.audio', 'completion_cost_details.image', 'completion_cost_details.video']]
