import { type LlmProvider } from "./provider.js";
import type { CompatibleUsageAliases } from "./token-usage.js";
import { type CustomProviderProfileSpec } from "./custom-provider-profile.js";
export type CustomProviderApi = "chat-completions" | "responses" | "anthropic-messages";
export interface CustomProviderDef {
    readonly id: string;
    readonly displayName: string;
    readonly baseUrl: string;
    readonly envVar?: string | undefined;
    readonly keyEnv?: string | undefined;
    readonly baseUrlEnv?: string | undefined;
    readonly defaultModel: string;
    readonly api?: CustomProviderApi | undefined;
    readonly usageAliases?: CompatibleUsageAliases | undefined;
    readonly profile?: CustomProviderProfileSpec | undefined;
}
export declare function customProviderProfileErrors(def: CustomProviderDef): string[];
export declare function buildCustomProvider(def: CustomProviderDef): LlmProvider;
export declare function getCustomProviderIds(): Promise<string[]>;
export declare function findCustomProviderDef(id: string, defs: readonly CustomProviderDef[]): CustomProviderDef | undefined;
export declare function getCustomProvider(id: string): Promise<LlmProvider | undefined>;
export declare function getCustomProviderSync(id: string): LlmProvider | undefined;
export declare function invalidateCustomProviderCache(id?: string): void;
export declare function materializeCustomProvider(def: CustomProviderDef): LlmProvider;
export declare function normalizeCustomProviderId(raw: string, existing: readonly string[]): string;
export declare function normalizeCustomBaseUrl(raw: string): string;