export { loadImageGenSettings } from './settings.js';
import type { ImageGenSettings, ResolvedModel } from './types.js';
/**
 * Returns the resolved value for an apiKey/header field. Supports `$VAR`
 * and `${VAR}` env substitution; returns undefined for missing env vars
 * so downstream code can fall through to defaults.
 *
 * Resolution happens here so settings from disk and settings constructed in
 * code get identical behavior.
 */
export declare function resolveConfigString(value: string | undefined): string | undefined;
export declare function configEnvironmentValues(value: string | undefined): string[];
/**
 * Resolve a model id (or alias) to a (provider, remoteModelId) pair using:
 *   1. Custom providers' explicit model lists (alias or id match).
 *   2. Built-in known models (alias or id match).
 *   3. `<provider>/<remote-id>` fallback for explicit routing.
 *   4. Catch-all: any custom provider that didn't declare a `models` list
 *      will accept any unknown model id, passing it through as the remote id.
 *      This lets users configure a single OpenAI-compatible gateway and use
 *      any model name without restating it in `models`.
 */
export declare function resolveModel(modelOrAlias: string, settings: ImageGenSettings): ResolvedModel | {
    error: string;
};
export declare function listKnownModelIds(): string[];
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