> ## Documentation Index
> Fetch the complete documentation index at: https://wb-21fd5541-drtangible-wip-test-inline-tag.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Usage

> TypeScript SDK reference

Defined in: [src/genai/types.ts:49](https://github.com/wandb/weave/blob/7c9efdc9fe05ffcaf2430dd652ef9bc5b3ffdfaa/sdks/node/src/genai/types.ts#L49)

## Properties

### cacheCreationInputTokens

> `optional` **cacheCreationInputTokens**: `number`

Defined in: [src/genai/types.ts:53](https://github.com/wandb/weave/blob/7c9efdc9fe05ffcaf2430dd652ef9bc5b3ffdfaa/sdks/node/src/genai/types.ts#L53)

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### cacheReadInputTokens

> `optional` **cacheReadInputTokens**: `number`

Defined in: [src/genai/types.ts:54](https://github.com/wandb/weave/blob/7c9efdc9fe05ffcaf2430dd652ef9bc5b3ffdfaa/sdks/node/src/genai/types.ts#L54)

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### inputTokens

> `optional` **inputTokens**: `number`

Defined in: [src/genai/types.ts:50](https://github.com/wandb/weave/blob/7c9efdc9fe05ffcaf2430dd652ef9bc5b3ffdfaa/sdks/node/src/genai/types.ts#L50)

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### outputTokens

> `optional` **outputTokens**: `number`

Defined in: [src/genai/types.ts:51](https://github.com/wandb/weave/blob/7c9efdc9fe05ffcaf2430dd652ef9bc5b3ffdfaa/sdks/node/src/genai/types.ts#L51)

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### reasoningTokens

> `optional` **reasoningTokens**: `number`

Defined in: [src/genai/types.ts:52](https://github.com/wandb/weave/blob/7c9efdc9fe05ffcaf2430dd652ef9bc5b3ffdfaa/sdks/node/src/genai/types.ts#L52)