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> For full documentation content, see https://docs.nvidia.com/nemo/relay/llms-full.txt.
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# Struct Atif Metrics

> Token usage and cost metrics for a single step.

Generated from `cargo doc --no-deps -p nemo-relay -p nemo-relay-adaptive -p nemo-relay-ffi`.

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Token usage and cost metrics for a single step.

## Fields

### `prompt_tokens: Option<u64>`

Number of prompt tokens.

### `completion_tokens: Option<u64>`

Number of completion tokens.

### `cached_tokens: Option<u64>`

Number of cached tokens.

### `cost_usd: Option<f64>`

Cost in USD.

### `prompt_token_ids: Option<Vec<u64>>`

Token IDs for prompt (input) tokens.

### `completion_token_ids: Option<Vec<u64>>`

Token IDs for completion (response) tokens.

### `logprobs: Option<Vec<f64>>`

Log probability assigned to each generated token.

### `extra: Option<Json>`

Other metrics (e.g. reasoning\_tokens, cache\_creation\_input\_tokens).

## Trait Implementations

### `impl Clone for AtifMetrics`

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#### `clone`

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#### `clone_from`

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### `impl Debug for AtifMetrics`

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#### `fmt`

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### `impl Default for AtifMetrics`

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#### `default`

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### `impl<'de> Deserialize<'de> for AtifMetrics`

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#### `deserialize`

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### `impl Serialize for AtifMetrics`

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#### `serialize`

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