import type { Api, Model, SimpleStreamOptions, StreamOptions, ThinkingLevel } from '../types.js';
export declare function buildBaseOptions(model: Model<Api>, options?: SimpleStreamOptions, apiKey?: string): StreamOptions;
export declare function clampReasoning(effort: ThinkingLevel | undefined): Exclude<ThinkingLevel, 'xhigh'> | undefined;
export declare function adjustMaxTokensForThinking(baseMaxTokens: number, modelMaxTokens: number, reasoningLevel: ThinkingLevel): {
    maxTokens: number;
    thinkingBudget: number;
};
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