import { LanguageModelV1 } from '@ai-sdk/provider';
/**
 * Creates a language model instance based on the provider and model name.
 *
 * @param providerModel - A string in the format "provider:model_name" (e.g., "openai:gpt-4").
 * @returns A promise resolving to an instance of LanguageModelV1.
 * @throws {Error} If the provider:model format is invalid or provider is not found.
 *
 * @example
 * ```typescript
 * const model = await getModel('openai:gpt-4');
 * ```
 */
export declare function getModel(providerModel: string): Promise<LanguageModelV1>;