import type { UnknownRecord } from '../config/virtual-router-types.js';
export type ProviderUpdateAuth = {
    type: 'apikey' | 'oauth';
    apiKey?: string;
    headerName?: string;
    prefix?: string;
    tokenFile?: string;
    clientId?: string;
    clientSecret?: string;
    tokenUrl?: string;
    deviceCodeUrl?: string;
    scopes?: string[];
};
export type ProviderUpdateInput = {
    providerId: string;
    type: string;
    baseUrl?: string;
    baseURL?: string;
    auth?: ProviderUpdateAuth;
};
export declare function resolveProviderRoot(customRoot?: string): string;
export declare function ensureDir(p: string): Promise<void>;
export declare function fileExists(p: string): Promise<boolean>;
export declare function ask(question: string, defaultValue?: string): Promise<string>;
export declare function askYesNo(question: string, defaultYes?: boolean): Promise<boolean>;
export declare function splitCsv(raw?: unknown): string[];
export declare function splitTokenThresholds(raw?: unknown): number[];
export declare function parseUniqueModelIds(raw: string, fallback?: string): string[];
export declare function normalizeEnvVarName(providerId: string): string;
export declare function readString(value: unknown): string | undefined;
export declare function readStringArray(value: unknown): string[] | undefined;
export declare function isRecord(value: unknown): value is Record<string, unknown>;
export declare function extractApiKeyFromAuthNode(authNode: Record<string, unknown>): string | undefined;
export declare function normalizeAuthForProviderUpdate(authNodeValue: unknown): ProviderUpdateAuth | undefined;
export declare function buildProviderUpdateInputFromV2(providerId: string, provider: UnknownRecord): ProviderUpdateInput;
export declare function authTypeUsesCredentialFile(authTypeRaw: string): boolean;
export declare function readCredentialFileFromAuthNode(authNode: UnknownRecord): string;
export declare function normalizeModelsNode(node: unknown): Record<string, UnknownRecord>;
export declare function countRouteTargets(routeNode: unknown): number;
export declare const __providerUpdateTestables: {
    splitCsv: typeof splitCsv;
    splitTokenThresholds: typeof splitTokenThresholds;
    parseUniqueModelIds: typeof parseUniqueModelIds;
    normalizeEnvVarName: typeof normalizeEnvVarName;
    readString: typeof readString;
    readStringArray: typeof readStringArray;
    isRecord: typeof isRecord;
    extractApiKeyFromAuthNode: typeof extractApiKeyFromAuthNode;
    normalizeAuthForProviderUpdate: typeof normalizeAuthForProviderUpdate;
    buildProviderUpdateInputFromV2: typeof buildProviderUpdateInputFromV2;
    authTypeUsesCredentialFile: typeof authTypeUsesCredentialFile;
    readCredentialFileFromAuthNode: typeof readCredentialFileFromAuthNode;
    normalizeModelsNode: typeof normalizeModelsNode;
};