import type { ProviderEvent } from '../../../provider.js';
import type { AnthropicMessagesCreateParams, AnthropicToolDef, RunTurnInput, WireToolDef } from '../types.js';
import { type FirstByteTimeoutHandle } from '../../shared/first-byte-timeout.js';
import { type StreamStallHandle } from '../../shared/stream-stall-timeout.js';
import { type RoundRetryBudget } from './retry-budget.js';
import type { TurnAccumulator } from './turn-accumulator.js';
export declare function toWireTool(tool: AnthropicToolDef): WireToolDef;
export interface OpenRoundTransport {
    kind: 'opened';
    events: AsyncIterable<unknown>;
    ttfb: FirstByteTimeoutHandle;
    stall: StreamStallHandle;
    requestStartedAt: number;
}
export type OpenRoundResult = OpenRoundTransport | {
    kind: 'retry-ttfb';
    requestStartedAt: number;
} | {
    kind: 'overload-exhausted';
} | {
    kind: 'terminated';
};
export interface OpenRoundContext {
    input: RunTurnInput;
    turn: TurnAccumulator;
    retry: RoundRetryBudget;
    ttfbTimeoutMs: number;
    stallTimeoutMs: number;
}
export declare function buildRoundParams(input: Pick<RunTurnInput, 'model' | 'maxTokens' | 'messages' | 'system' | 'tools' | 'thinking' | 'effort' | 'temperature' | 'fastMode'>): AnthropicMessagesCreateParams;
export declare function openRound({ input, turn, retry, ttfbTimeoutMs, stallTimeoutMs, }: OpenRoundContext): AsyncGenerator<ProviderEvent, OpenRoundResult, void>;