/**
 * Zoe Core — Provider Environment Resolution
 *
 * Environment variable helpers, default models, and env-based resolution.
 * Extracted from provider-resolver.ts for single-responsibility.
 */
import { DEFAULT_MODELS } from "../models-catalog.js";
import type { MultiProviderConfig, ProviderType } from "./types.js";
export { DEFAULT_MODELS };
export declare const PROVIDER_ENV_KEYS: Record<ProviderType, {
    apiKey: string;
    baseUrl?: string;
}>;
export declare function env(name: string): string | undefined;
export declare function resolveApiKey(type: ProviderType): string | undefined;
export declare function resolveBaseUrl(type: ProviderType): string | undefined;
export declare function resolveDefaultType(): ProviderType;
export declare function resolveDefaultModel(type: ProviderType): string;
/**
 * Resolve a GLM model alias or model name to the actual model identifier.
 *
 * Looks up the model in the GLM_MODEL_MAP (e.g. "haiku" -> "glm-4.5-air",
 * "sonnet" -> "glm-4.7", "opus" -> "glm-5.1"). If the model is not found in
 * the map, it is returned unchanged.
 *
 * @param model - Model name or alias to resolve.
 * @returns The resolved model identifier.
 */
export declare function resolveGLMModel(model: string): string;
/**
 * Scans environment variables and builds a MultiProviderConfig from them.
 * This replaces the server's `initializeProvidersFromEnv()` function.
 *
 * Note: This function only RETURNS the config. To actually configure providers,
 * call `configureProviders(resolveFromEnv())`.
 *
 * @returns MultiProviderConfig if any env vars are set, null otherwise.
 */
export declare function resolveFromEnv(): MultiProviderConfig | null;