import { Effect, Stream } from "effect";
import { LanguageModel, Prompt, Response, Tool } from "effect/unstable/ai";
import { type Event } from "./agent-event.js";
import { type Registry } from "../tools/tool-registry.js";
import { type ModelCallPurpose } from "../model/model-telemetry.js";
import type { ModelTurnServices, RuntimeContext } from "./model-turn-context.js";
import type { RunError } from "./agent.js";
import type { TurnOverrides } from "../turn/turn-policy.js";
export declare const makeModelTurn: <T extends Record<string, Tool.Any>, R>(context: RuntimeContext<T, R>) => {
    modelTurn: (turn: number, prompt: Prompt.RawInput, registry: Registry, overrides?: TurnOverrides) => Stream.Stream<Event, RunError, ModelTurnServices<T, R>>;
    captureStructuredUsage: (content: ReadonlyArray<Response.Part<Record<string, Tool.Any>>>) => Effect.Effect<void, never, never>;
    withModelTelemetry: (turn: number, purpose: ModelCallPurpose) => <A, E, R2>(effect: Effect.Effect<A, E, R2>) => Effect.Effect<A, E, LanguageModel.LanguageModel | Exclude<Exclude<R2, LanguageModel.LanguageModel>, never>>;
    withAgentModel: <A, E, R2>(effect: Effect.Effect<A, E, R2>) => Effect.Effect<A, E, R2> | Effect.Effect<A, E | import("../model/model-registry.js").LanguageModelNotRegistered, Exclude<R2, import("../model/model-registry.js").ModelEnvironment>>;
};