import type { ChatCompletionMessageParam } from "openai/resources/chat/completions";
import { type AssistantMessage, type Context, type Model, type ServiceTier, type StreamFunction, type StreamOptions, type ToolChoice } from "../types";
import { type ResolvedOpenAICompat } from "./openai-completions-compat";
/** Test seam: the provider base URL as resolved from trusted env. */
export declare function resolveOpenAICompletionsBaseUrlForTest(baseUrl: string | undefined, authCredentialType: "api_key" | "oauth" | undefined): string;
/**
 * Identify "real progress" stream chunks vs. keepalives, role-only preambles,
 * and empty `{choices:[]}` no-ops emitted by some OpenAI-compatible endpoints.
 * Without this filter, every keepalive resets `iterateWithIdleTimeout`'s
 * deadline, so a provider that streams nothing but pings keeps the watchdog
 * asleep indefinitely — observed against z.ai/GLM via OpenRouter where a
 * subagent stalled for hours with no error surfaced.
 *
 * A chunk counts as progress when it carries terminal usage, a finish reason,
 * or any model-produced delta (content / tool calls / reasoning / refusal).
 * Role-only `delta: { role: "assistant" }` preambles do NOT count; we want the
 * (longer) first-event timeout to keep governing until real output appears.
 */
export declare function isOpenAICompletionsProgressChunk(chunk: unknown): boolean;
export interface OpenAICompletionsOptions extends StreamOptions {
    toolChoice?: ToolChoice;
    reasoning?: "minimal" | "low" | "medium" | "high" | "xhigh" | "max";
    /** Force-disable reasoning where supported, or request the lowest effort on generic effort endpoints. */
    disableReasoning?: boolean;
    serviceTier?: ServiceTier;
}
export declare const streamOpenAICompletions: StreamFunction<"openai-completions">;
export declare function parseChunkUsage(rawUsage: object, model: Model<"openai-completions">, premiumRequests: number | undefined): AssistantMessage["usage"];
export declare function convertMessages(model: Model<"openai-completions">, context: Context, compat: ResolvedOpenAICompat): ChatCompletionMessageParam[];
/**
 * Detect compatibility settings from provider and baseUrl for known providers.
 * Provider takes precedence over URL-based detection since it's explicitly configured.
 * Returns a fully resolved OpenAICompat object with all fields set.
 */
export declare function detectCompat(model: Model<"openai-completions">): ResolvedOpenAICompat;