import type { LanguageModelV4, LanguageModelV4CallOptions, LanguageModelV4StreamPart } from "@ai-sdk/provider";
import type { LanguageModel, streamText } from "ai";
import { MockLanguageModelV4 } from "ai/test";
export declare const asV4: (m: LanguageModel) => LanguageModelV4;
export declare const usage: {
    inputTokens: {
        total: number;
        noCache: number;
        cacheRead: number;
        cacheWrite: number;
    };
    outputTokens: {
        total: number;
        text: number;
        reasoning: number;
    };
};
export declare const finishReason: {
    unified: "stop";
    raw: string;
};
export declare const NO_CANDIDATE_RE: RegExp;
export declare const NOT_V4_RE: RegExp;
export declare const HTTPS_A_RE: RegExp;
export declare const EXAMPLE_HTTPS_RE: RegExp;
export declare const MUTABLE_EXAMPLE_RE: RegExp;
export declare const MAX_ATTEMPTS_RE: RegExp;
export declare function promiseLike<T>(value: T): PromiseLike<T>;
export declare function okModel(text?: string): MockLanguageModelV4;
export declare function failingModel(message?: string): MockLanguageModelV4;
export declare function streamingModel(parts?: string[]): MockLanguageModelV4;
export declare function failingStreamModel(message?: string): MockLanguageModelV4;
export declare const imagePart: {
    type: "file";
    mediaType: string;
    data: string;
};
export declare function collectStream(result: ReturnType<typeof streamText>): Promise<string>;
export declare function collectRawStream(stream: ReadableStream<LanguageModelV4StreamPart>): Promise<{
    error?: unknown;
    text: string;
}>;
export declare const genOptions: LanguageModelV4CallOptions;
/** A model whose doGenerate throws an error carrying an HTTP-ish statusCode. */
export declare function failingModelStatus(statusCode: number, message?: string): MockLanguageModelV4;
/** A streaming model that emits stream-start then an in-band error part (no content). */
export declare function errorPartStreamModel(error: unknown): MockLanguageModelV4;
/** A streaming model whose reader rejects after committing partial text. */
export declare function readErrorStreamModel(error: unknown, text?: string | null): MockLanguageModelV4;