import type { ProviderConfig, ProviderName } from "./types.js";
/** Optional credentials and request settings for a string model identifier. */
export interface NativeLLMConfig {
    /** Provider API key. When omitted, the provider environment variable is used. */
    apiKey?: string;
    /** Sampling temperature forwarded to the provider. */
    temperature?: number;
    /** Maximum number of output tokens requested from the provider. */
    maxTokens?: number;
    /** Provider API base URL override. */
    baseUrl?: string;
    /** Additional HTTP headers sent with every request. */
    extraHeaders?: Record<string, string>;
    /** Fetch credentials mode used for provider requests. */
    credentials?: RequestCredentials;
}
/**
 * Parses a `"provider/model"` identifier into a provider configuration.
 *
 * @param llmString - Provider and model separated by the first slash.
 * @param config - Optional credentials and request overrides.
 * @returns A complete provider configuration.
 * @throws Error if the identifier is invalid, the provider is unsupported, or
 * no required API key is available.
 */
export declare function parseLLMStringToProviderConfig(llmString: string, config?: NativeLLMConfig): ProviderConfig;
/**
 * Builds a provider configuration from separate provider and model values.
 *
 * @param provider - Provider implementation to use.
 * @param model - Provider-specific model identifier.
 * @param config - Optional credentials and request overrides.
 * @returns A complete provider configuration.
 * @throws Error if no required API key is available.
 */
export declare function providerConfigFromOptions(provider: ProviderName, model: string, config?: NativeLLMConfig): ProviderConfig;
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