/**
 * [WHO]: CUSTOM_ANTHROPIC_PROVIDER, CUSTOM_OPENAI_PROVIDER, registerCustomProvider()
 * [FROM]: Depends on config/auth-storage, node:fs
 * [TO]: Consumed by core/model-registry.ts
 * [HERE]: core/model/custom-providers.ts - custom provider registration
 */
import type { AuthStorage } from "../platform/config/auth-storage.js";
export declare const CUSTOM_ANTHROPIC_PROVIDER = "custom-anthropic";
export declare const CUSTOM_OPENAI_PROVIDER = "custom-openai";
export type CustomProtocolProviderId = typeof CUSTOM_ANTHROPIC_PROVIDER | typeof CUSTOM_OPENAI_PROVIDER;
type CustomProtocolProviderDefinition = {
    id: CustomProtocolProviderId;
    label: string;
    description: string;
    defaultBaseUrl: string;
    api: "anthropic-messages" | "openai-completions";
    defaultInput: ("text" | "image")[];
};
export declare function isCustomProtocolProvider(provider: string): provider is CustomProtocolProviderId;
export declare function listCustomProtocolProviders(): CustomProtocolProviderId[];
export declare function getCustomProtocolProviderDefinition(provider: CustomProtocolProviderId): CustomProtocolProviderDefinition;
export declare function getCustomProtocolProviderBaseUrl(modelsPath: string, provider: CustomProtocolProviderId): string | undefined;
export declare function getCustomProtocolProviderModelName(modelsPath: string, provider: CustomProtocolProviderId): string | undefined;
export declare function getCustomProtocolProviderModelLimits(modelsPath: string, provider: CustomProtocolProviderId): {
    contextWindow?: number;
    maxTokens?: number;
};
export declare function ensureCustomProtocolProvidersInModels(modelsPath: string): void;
export declare function saveCustomProtocolProviderConfig(modelsPath: string, provider: CustomProtocolProviderId, configUpdate: {
    baseUrl: string;
    modelName: string;
    apiKey?: string;
    overrides?: {
        contextWindow?: number;
        maxTokens?: number;
    };
}): Promise<{
    contextWindow?: number;
    maxTokens?: number;
} | null>;
export declare function saveCustomProtocolProviderApiKey(authStorage: AuthStorage, provider: CustomProtocolProviderId, apiKey: string): void;
export {};