import { z } from 'zod';
/**
 * Hints to use for model selection.
 *
 * Keys not declared here are currently left unspecified by the spec and are up
 * to the client to interpret.
 */
export declare const modelHintSchema: z.ZodObject<{
    /**
     * A hint for a model name.
     *
     * The client SHOULD treat this as a substring of a model name; for example:
     *  - `claude-3-5-sonnet` should match `claude-3-5-sonnet-20241022`
     *  - `sonnet` should match `claude-3-5-sonnet-20241022`, `claude-3-sonnet-20240229`, etc.
     *  - `claude` should match any Claude model
     *
     * The client MAY also map the string to a different provider's model name or a different model family, as long as it fills a similar niche; for example:
     *  - `gemini-1.5-flash` could match `claude-3-haiku-20240307`
     */
    name: z.ZodOptional<z.ZodString>;
}, "strip", z.ZodTypeAny, {
    name?: string | undefined;
}, {
    name?: string | undefined;
}>;
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