/**
 * Framework-default `providerOptions` for known providers.
 *
 * Currently: enable Anthropic extended thinking by default only for catalog
 * models that declare a thinking budget. Apps can override or opt out by
 * returning their own `providerOptions.anthropic.thinking` from
 * `AgentConfig.resolveModelTransport`.
 */
export declare function resolveProviderOptionsWithDefaults(modelString: string, existing: Record<string, unknown> | undefined): Record<string, unknown> | undefined;
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