import { type GoogleGenAIOptions, type GroundingChunk, type GroundingSupport } from "@google/genai";
export declare const DEFAULT_GEMINI_MODEL = "gemini-2.5-flash";
export declare const DEFAULT_MAX_RESULTS = 10;
export declare const DEFAULT_FETCH_MAX_CHARS = 12000;
export declare const MAX_RESULTS_CAP = 10;
export type Citation = {
    url: string;
    title?: string;
};
export type GeminiSearchArgs = {
    objective: string;
    searchQueries?: string[];
    maxResults?: number;
    model?: string;
    signal?: AbortSignal;
};
export type GeminiFetchArgs = {
    url: string;
    objective?: string;
    prompt?: string;
    maxChars?: number;
    model?: string;
    signal?: AbortSignal;
};
export declare function resolveGeminiApiKey(): string | undefined;
export declare function resolveGeminiModel(input?: string): string;
export declare function resolveGeminiBaseUrl(): string | undefined;
export declare function splitGeminiBaseUrl(baseUrl: string): {
    baseUrl: string;
    apiVersion?: string;
};
export declare function clampMaxResults(value?: number): number;
export declare function buildSearchPrompt(objective: string, searchQueries?: string[], maxResults?: number): string;
export declare function buildFetchPrompt(url: string, objective?: string, prompt?: string): string;
export declare function wrapUntrustedWebContent(text: string, source: "web_search" | "web_fetch" | "web_extract" | "web_summary"): string;
export declare function trimToMaxChars(text: string, maxChars: number): string;
export declare function citationsFromGrounding(chunks: GroundingChunk[] | undefined, maxResults?: number): Citation[];
export declare function formatSources(citations: Citation[]): string;
export declare function insertGroundingCitations(text: string, supports: GroundingSupport[] | undefined): string;
export declare function buildGeminiClientOptions(apiKey: string): GoogleGenAIOptions;
export declare function runGeminiSearch(args: GeminiSearchArgs): Promise<{
    text: string;
    citations: Citation[];
    model: string;
}>;
export declare function runGeminiFetch(args: GeminiFetchArgs): Promise<{
    text: string;
    citations: Citation[];
    model: string;
}>;
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